curl measurement tool for HTTPS connection times using shell script modified from https://nooshu.github.io/blog/2020/07/30/measuring-tls-13-ipv4-ipv6-performance/
- Usage
- Examples
- Process Metrics
- TLS 1.2 vs TLS 1.3 diff compare
- curl HTTP/3 support
- Compare curl HTTP/3 over QUIC vs HTTP/2 over TLSv1.3
- Compare Mode
- curl resolve mode
- Environment Variables
./curltimes.sh
Usage:
TLS 1.2 max tests
./curltimes.sh json https://domain.com
./curltimes.sh csv https://domain.com
TLS 1.3 max tests
./curltimes.sh json-max https://domain.com
./curltimes.sh csv-max https://domain.com
CSV Summary
./curltimes.sh csv-sum https://domain.com
./curltimes.sh csv-max-sum https://domain.com
TLSv1.2 vs TLSv1.3 Compare
./curltimes.sh compare https://domain.com
json output with TLS 1.2 max
./curltimes.sh json https://servermanager.guide
curl 7.72.0-DEV
TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
DNS,Connect,SSL,Wait,TTFB,Total Time
{
"time_dns": 0.015699,
"time_connect": 0.024545,
"time_appconnect": 0.062394,
"time_pretransfer": 0.062475,
"time_ttfb": 0.094291,
"time_total": 0.103574
}{
"time_dns": 0.002299,
"time_connect": 0.013313,
"time_appconnect": 0.045032,
"time_pretransfer": 0.045112,
"time_ttfb": 0.069348,
"time_total": 0.080474
}{
"time_dns": 0.017739,
"time_connect": 0.026433,
"time_appconnect": 0.053973,
"time_pretransfer": 0.054058,
"time_ttfb": 0.083686,
"time_total": 0.093763
}
json output with TLS 1.3 max
./curltimes.sh json-max https://servermanager.guide
curl 7.72.0-DEV
TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
DNS,Connect,SSL,Wait,TTFB,Total Time
{
"time_dns": 0.002447,
"time_connect": 0.011198,
"time_appconnect": 0.027511,
"time_pretransfer": 0.027593,
"time_ttfb": 0.064391,
"time_total": 0.073440
}{
"time_dns": 0.002405,
"time_connect": 0.013513,
"time_appconnect": 0.033980,
"time_pretransfer": 0.034065,
"time_ttfb": 0.073271,
"time_total": 0.084364
}{
"time_dns": 0.002346,
"time_connect": 0.011054,
"time_appconnect": 0.030559,
"time_pretransfer": 0.030656,
"time_ttfb": 0.084737,
"time_total": 0.093304
}
csv output with TLS 1.2 max
./curltimes.sh csv https://servermanager.guide
curl 7.72.0-DEV
TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
DNS,Connect,SSL,Wait,TTFB,Total Time
0.002464,0.013496,0.045009,0.045091,0.078059,0.089155
0.002349,0.010987,0.038559,0.038653,0.080786,0.089689
0.002411,0.013445,0.044758,0.04484,0.07613,0.087181
csv output with TLS 1.3 max
./curltimes.sh csv-max https://servermanager.guide
curl 7.72.0-DEV
TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
DNS,Connect,SSL,Wait,TTFB,Total Time
0.002368,0.011004,0.032605,0.032687,0.069083,0.078063
0.002417,0.011137,0.029379,0.029465,0.071944,0.081752
0.002351,0.013413,0.034949,0.03503,0.073061,0.084205
Using datamash to provide summary metrics for all recorded data points
csv-sum output with TLS 1.2 max
./curltimes.sh csv-sum https://servermanager.guide
curl 7.72.0-DEV
TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
0.015257,0.023983,0.049285,0.049374,0.071656,0.080435
0.002349,0.01104,0.036542,0.036626,0.062205,0.07452
0.002402,0.011086,0.037044,0.037124,0.0672,0.078116
time_dns
avg: 0.006669
median: 0.002402
min: 0.002349
max: 0.015257
75%: 0.008830
95%: 0.013972
99%: 0.015000
time_connect
avg: 0.015370
median: 0.011086
min: 0.011040
max: 0.023983
75%: 0.017535
95%: 0.022693
99%: 0.023725
time_appconnect
avg: 0.040957
median: 0.037044
min: 0.036542
max: 0.049285
75%: 0.043165
95%: 0.048061
99%: 0.049040
time_pretransfer
avg: 0.041041
median: 0.037124
min: 0.036626
max: 0.049374
75%: 0.043249
95%: 0.048149
99%: 0.049129
time_ttfb
avg: 0.067020
median: 0.067200
min: 0.062205
max: 0.071656
75%: 0.069428
95%: 0.071210
99%: 0.071567
time_total
avg: 0.077690
median: 0.078116
min: 0.074520
max: 0.080435
75%: 0.079275
95%: 0.080203
99%: 0.080389
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.006669,0.002402,0.002349,0.015257,0.008830,0.013972,0.015000
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.015370,0.011086,0.011040,0.023983,0.017535,0.022693,0.023725
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.040957,0.037044,0.036542,0.049285,0.043165,0.048061,0.049040
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.041041,0.037124,0.036626,0.049374,0.043249,0.048149,0.049129
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.067020,0.067200,0.062205,0.071656,0.069428,0.071210,0.071567
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.077690,0.078116,0.074520,0.080435,0.079275,0.080203,0.080389
csv-max-sum output with TLS 1.3 max
./curltimes.sh csv-max-sum https://servermanager.guide
curl 7.72.0-DEV
TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:43fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
0.002545,0.011174,0.029505,0.029594,0.055961,0.06396
0.002442,0.01114,0.036338,0.036424,0.068599,0.077132
0.002426,0.011046,0.027465,0.027547,0.060354,0.067771
time_dns
avg: 0.002471
median: 0.002442
min: 0.002426
max: 0.002545
75%: 0.002493
95%: 0.002535
99%: 0.002543
time_connect
avg: 0.011120
median: 0.011140
min: 0.011046
max: 0.011174
75%: 0.011157
95%: 0.011171
99%: 0.011173
time_appconnect
avg: 0.031103
median: 0.029505
min: 0.027465
max: 0.036338
75%: 0.032921
95%: 0.035655
99%: 0.036201
time_pretransfer
avg: 0.031188
median: 0.029594
min: 0.027547
max: 0.036424
75%: 0.033009
95%: 0.035741
99%: 0.036287
time_ttfb
avg: 0.061638
median: 0.060354
min: 0.055961
max: 0.068599
75%: 0.064476
95%: 0.067775
99%: 0.068434
time_total
avg: 0.069621
median: 0.067771
min: 0.063960
max: 0.077132
75%: 0.072451
95%: 0.076196
99%: 0.076945
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.002471,0.002442,0.002426,0.002545,0.002493,0.002535,0.002543
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.011120,0.011140,0.011046,0.011174,0.011157,0.011171,0.011173
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.031103,0.029505,0.027465,0.036338,0.032921,0.035655,0.036201
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.031188,0.029594,0.027547,0.036424,0.033009,0.035741,0.036287
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.061638,0.060354,0.055961,0.068599,0.064476,0.067775,0.068434
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.069621,0.067771,0.063960,0.077132,0.072451,0.076196,0.076945
domain=servermanager.guide
time diff -u <(./curltimes.sh csv-sum https://$domain) <(./curltimes.sh csv-max-sum https://$domain)
domain=servermanager.guide
time diff -u <(./curltimes.sh csv-sum https://$domain) <(./curltimes.sh csv-max-sum https://$domain)
--- /dev/fd/63 2020-08-03 11:40:44.747487856 +0000
+++ /dev/fd/62 2020-08-03 11:40:44.747487856 +0000
@@ -1,77 +1,77 @@
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:43fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
-0.002346,0.01103,0.035427,0.035503,0.060286,0.069271
-0.002479,0.011148,0.037028,0.0371,0.079237,0.088524
-0.002359,0.010994,0.03724,0.037317,0.068266,0.085086
+0.002381,0.011015,0.031037,0.031123,0.054617,0.063293
+0.002451,0.011154,0.030285,0.030374,0.058021,0.066109
+0.002392,0.011041,0.027912,0.027996,0.05965,0.067558
time_dns
- avg: 0.002395
- median: 0.002359
- min: 0.002346
- max: 0.002479
- 75%: 0.002419
- 95%: 0.002467
- 99%: 0.002477
+ avg: 0.002408
+ median: 0.002392
+ min: 0.002381
+ max: 0.002451
+ 75%: 0.002422
+ 95%: 0.002445
+ 99%: 0.002450
time_connect
- avg: 0.011057
- median: 0.011030
- min: 0.010994
- max: 0.011148
- 75%: 0.011089
- 95%: 0.011136
- 99%: 0.011146
+ avg: 0.011070
+ median: 0.011041
+ min: 0.011015
+ max: 0.011154
+ 75%: 0.011098
+ 95%: 0.011143
+ 99%: 0.011152
time_appconnect
- avg: 0.036565
- median: 0.037028
- min: 0.035427
- max: 0.037240
- 75%: 0.037134
- 95%: 0.037219
- 99%: 0.037236
+ avg: 0.029745
+ median: 0.030285
+ min: 0.027912
+ max: 0.031037
+ 75%: 0.030661
+ 95%: 0.030962
+ 99%: 0.031022
time_pretransfer
- avg: 0.036640
- median: 0.037100
- min: 0.035503
- max: 0.037317
- 75%: 0.037209
- 95%: 0.037295
- 99%: 0.037313
+ avg: 0.029831
+ median: 0.030374
+ min: 0.027996
+ max: 0.031123
+ 75%: 0.030749
+ 95%: 0.031048
+ 99%: 0.031108
time_ttfb
- avg: 0.069263
- median: 0.068266
- min: 0.060286
- max: 0.079237
- 75%: 0.073751
- 95%: 0.078140
- 99%: 0.079018
+ avg: 0.057429
+ median: 0.058021
+ min: 0.054617
+ max: 0.059650
+ 75%: 0.058836
+ 95%: 0.059487
+ 99%: 0.059617
time_total
- avg: 0.080960
- median: 0.085086
- min: 0.069271
- max: 0.088524
- 75%: 0.086805
- 95%: 0.088180
- 99%: 0.088455
+ avg: 0.065653
+ median: 0.066109
+ min: 0.063293
+ max: 0.067558
+ 75%: 0.066833
+ 95%: 0.067413
+ 99%: 0.067529
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
-0.002395,0.002359,0.002346,0.002479,0.002419,0.002467,0.002477
+0.002408,0.002392,0.002381,0.002451,0.002422,0.002445,0.002450
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
-0.011057,0.011030,0.010994,0.011148,0.011089,0.011136,0.011146
+0.011070,0.011041,0.011015,0.011154,0.011098,0.011143,0.011152
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
-0.036565,0.037028,0.035427,0.037240,0.037134,0.037219,0.037236
+0.029745,0.030285,0.027912,0.031037,0.030661,0.030962,0.031022
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
-0.036640,0.037100,0.035503,0.037317,0.037209,0.037295,0.037313
+0.029831,0.030374,0.027996,0.031123,0.030749,0.031048,0.031108
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
-0.069263,0.068266,0.060286,0.079237,0.073751,0.078140,0.079018
+0.057429,0.058021,0.054617,0.059650,0.058836,0.059487,0.059617
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
-0.080960,0.085086,0.069271,0.088524,0.086805,0.088180,0.088455
+0.065653,0.066109,0.063293,0.067558,0.066833,0.067413,0.067529
real 0m1.410s
user 0m0.298s
sys 0m0.249s
curltimes.sh script can optionally support curl HTTP/3 tests if you change script's bin= and bin_http3 variables to match the path for your custom curl version binary built with HTTP/3 support as outlined at https://github.com/curl/curl/blob/master/docs/HTTP3.md. However, as curl HTTP/3 requests are done over QUIC and not TLS, you won't be testing TLSv1.2 or TLSv1.3 but HTTP/3 over QUIC.
Then change script variables http3='n' to http3='y' and change the curl HTTP/3 binary's library path variable library_path_http3 to where you installed it for custom curl HTTP/3 binary
bin='/usr/local/src/curl/src/curl'
bin_http3='/usr/local/src/curl/src/curl'
http3='y'
library_path_http3='/usr/lib/x86_64-linux-gnu'
Then running csv-max-sum option would display curl HTTP/3 binary timings but there is no TLS protocol info due to HTTP/3 over QUIC and not TLS and time_appconnect timings are not available right now resulting in zero values with curl HTTP/3 requests. See issue here (seems time_connect is now available since that issue was created).
./curltimes.sh csv-max-sum https://servermanager.guide
curl 7.72.0-DEV
HTTP/3
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
0.002418,0.015616,0,0.015679,0.043934,0.055905
0.002461,0.015724,0,0.015787,0.040819,0.052362
0.00238,0.015587,0,0.01565,0.088367,0.099117
time_dns
avg: 0.002420
median: 0.002418
min: 0.002380
max: 0.002461
75%: 0.002440
95%: 0.002457
99%: 0.002460
time_connect
avg: 0.015642
median: 0.015616
min: 0.015587
max: 0.015724
75%: 0.015670
95%: 0.015713
99%: 0.015722
time_appconnect
avg: 0.000000
median: 0.000000
min: 0.000000
max: 0.000000
75%: 0.000000
95%: 0.000000
99%: 0.000000
time_pretransfer
avg: 0.015705
median: 0.015679
min: 0.015650
max: 0.015787
75%: 0.015733
95%: 0.015776
99%: 0.015785
time_ttfb
avg: 0.057707
median: 0.043934
min: 0.040819
max: 0.088367
75%: 0.066150
95%: 0.083924
99%: 0.087478
time_total
avg: 0.069128
median: 0.055905
min: 0.052362
max: 0.099117
75%: 0.077511
95%: 0.094796
99%: 0.098253
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.002420,0.002418,0.002380,0.002461,0.002440,0.002457,0.002460
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.015642,0.015616,0.015587,0.015724,0.015670,0.015713,0.015722
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.015705,0.015679,0.015650,0.015787,0.015733,0.015776,0.015785
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.057707,0.043934,0.040819,0.088367,0.066150,0.083924,0.087478
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.069128,0.055905,0.052362,0.099117,0.077511,0.094796,0.098253
bin='/usr/local/src/curl/src/curl'
bin_http3='/usr/local/src/curl/src/curl'
http3='n'
library_path_http3='/usr/lib/x86_64-linux-gnu'
./curltimes.sh csv-max-sum https://servermanager.guide > curl-http2-tls13.txt
bin='/usr/local/src/curl/src/curl'
bin_http3='/usr/local/src/curl/src/curl'
http3='y'
library_path_http3='/usr/lib/x86_64-linux-gnu'
./curltimes.sh csv-max-sum https://servermanager.guide > curl-http3-quic.txt
diff -u curl-http2-tls13.txt curl-http3-quic.txt
--- curl-http2-tls13.txt 2020-08-03 11:43:11.165537343 +0000
+++ curl-http3-quic.txt 2020-08-03 11:42:56.063429165 +0000
@@ -1,77 +1,76 @@
curl 7.72.0-DEV
-TLSv1.3 TLS_AES_128_GCM_SHA256
-HTTP/2
-Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
+HTTP/3
+Connected to servermanager.guide (2606:4700:10::6816:43fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
-0.002326,0.010946,0.027514,0.027596,0.064009,0.072842
-0.002312,0.010975,0.027706,0.027794,0.054353,0.063016
-0.002343,0.010972,0.027919,0.028001,0.056304,0.064145
+0.002068,0.015977,0,0.01604,0.045322,0.058387
+0.002492,0.015228,0,0.015289,0.045792,0.057082
+0.002454,0.014833,0,0.014896,0.040921,0.05188
time_dns
- avg: 0.002327
- median: 0.002326
- min: 0.002312
- max: 0.002343
- 75%: 0.002334
- 95%: 0.002341
- 99%: 0.002343
+ avg: 0.002338
+ median: 0.002454
+ min: 0.002068
+ max: 0.002492
+ 75%: 0.002473
+ 95%: 0.002488
+ 99%: 0.002491
time_connect
- avg: 0.010964
- median: 0.010972
- min: 0.010946
- max: 0.010975
- 75%: 0.010973
- 95%: 0.010975
- 99%: 0.010975
+ avg: 0.015346
+ median: 0.015228
+ min: 0.014833
+ max: 0.015977
+ 75%: 0.015603
+ 95%: 0.015902
+ 99%: 0.015962
time_appconnect
- avg: 0.027713
- median: 0.027706
- min: 0.027514
- max: 0.027919
- 75%: 0.027812
- 95%: 0.027898
- 99%: 0.027915
+ avg: 0.000000
+ median: 0.000000
+ min: 0.000000
+ max: 0.000000
+ 75%: 0.000000
+ 95%: 0.000000
+ 99%: 0.000000
time_pretransfer
- avg: 0.027797
- median: 0.027794
- min: 0.027596
- max: 0.028001
- 75%: 0.027898
- 95%: 0.027980
- 99%: 0.027997
+ avg: 0.015408
+ median: 0.015289
+ min: 0.014896
+ max: 0.016040
+ 75%: 0.015664
+ 95%: 0.015965
+ 99%: 0.016025
time_ttfb
- avg: 0.058222
- median: 0.056304
- min: 0.054353
- max: 0.064009
- 75%: 0.060157
- 95%: 0.063239
- 99%: 0.063855
+ avg: 0.044012
+ median: 0.045322
+ min: 0.040921
+ max: 0.045792
+ 75%: 0.045557
+ 95%: 0.045745
+ 99%: 0.045783
time_total
- avg: 0.066668
- median: 0.064145
- min: 0.063016
- max: 0.072842
- 75%: 0.068494
- 95%: 0.071972
- 99%: 0.072668
+ avg: 0.055783
+ median: 0.057082
+ min: 0.051880
+ max: 0.058387
+ 75%: 0.057734
+ 95%: 0.058256
+ 99%: 0.058361
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
-0.002327,0.002326,0.002312,0.002343,0.002334,0.002341,0.002343
+0.002338,0.002454,0.002068,0.002492,0.002473,0.002488,0.002491
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
-0.010964,0.010972,0.010946,0.010975,0.010973,0.010975,0.010975
+0.015346,0.015228,0.014833,0.015977,0.015603,0.015902,0.015962
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
-0.027713,0.027706,0.027514,0.027919,0.027812,0.027898,0.027915
+0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
-0.027797,0.027794,0.027596,0.028001,0.027898,0.027980,0.027997
+0.015408,0.015289,0.014896,0.016040,0.015664,0.015965,0.016025
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
-0.058222,0.056304,0.054353,0.064009,0.060157,0.063239,0.063855
+0.044012,0.045322,0.040921,0.045792,0.045557,0.045745,0.045783
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
-0.066668,0.064145,0.063016,0.072842,0.068494,0.071972,0.072668
+0.055783,0.057082,0.051880,0.058387,0.057734,0.058256,0.058361
Extended curltimes.sh to automate the above diff compare for TLSv1.2 versus TLSv1.3 in summary format without individual metrics
domain=servermanager.guide
./curltimes.sh compare https://$domain
domain=servermanager.guide
./curltimes.sh compare https://$domain
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
-Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
+Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.006312,0.002349,0.002342,0.014245,0.008297,0.013055,0.014007
tls13: 0.007001,0.002409,0.002332,0.016262,0.009335,0.014877,0.015985
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.015793,0.013359,0.011095,0.022924,0.018142,0.021968,0.022733
tls13: 0.016479,0.011109,0.011041,0.027288,0.019198,0.025670,0.026964
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.044413,0.045667,0.039694,0.047878,0.046772,0.047657,0.047834
tls13: 0.034607,0.029052,0.028229,0.046539,0.037796,0.044790,0.046189
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.044489,0.045755,0.039760,0.047951,0.046853,0.047731,0.047907
tls13: 0.034687,0.029118,0.028320,0.046623,0.037871,0.044872,0.046273
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.083920,0.079920,0.075112,0.096729,0.088325,0.095048,0.096393
tls13: 0.066135,0.062355,0.059512,0.076539,0.069447,0.075121,0.076255
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.095370,0.094142,0.084327,0.107640,0.100891,0.106290,0.107370
tls13: 0.077608,0.073708,0.072246,0.086870,0.080289,0.085554,0.086607
curltimes.sh supports curl's --resolve domain:443:[ip_address] so you can tell curl to connect and resolve to a specific IP address overriding DNS for that domain. Useful for when testing domains that use Cloudflare proxy which have more than 1 IP address associated with the domain's DNS A and AAAA records. This ensures you're testing TLSv1.2 vs TLSv1.3 on the same server/IP.
By default curltimes.sh tests against IPv6 address first and fallbacks to IPv4 if IPv6 isn't supported. But if you want to force IPv4 tests, change in script force_ipv4='n' to force_ipv4='y'.
Run csv-max-sum and tell curl to connect to domain=servermanager.guide using IPv6 address 2606:4700:10::ac43:26be
dig +short AAAA servermanager.guide
2606:4700:10::ac43:26be
2606:4700:10::6816:42fa
2606:4700:10::6816:43fa
domain=servermanager.guide
./curltimes.sh csv-max-sum https://$domain 2606:4700:10::ac43:26be
curl 7.72.0-DEV
TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
0.002388,0.011001,0.027721,0.027805,0.055312,0.063218
0.002387,0.011143,0.028621,0.028703,0.057248,0.067432
0.002407,0.011234,0.027669,0.027752,0.057698,0.066897
time_dns
avg: 0.002394
median: 0.002388
min: 0.002387
max: 0.002407
75%: 0.002398
95%: 0.002405
99%: 0.002407
time_connect
avg: 0.011126
median: 0.011143
min: 0.011001
max: 0.011234
75%: 0.011188
95%: 0.011225
99%: 0.011232
time_appconnect
avg: 0.028004
median: 0.027721
min: 0.027669
max: 0.028621
75%: 0.028171
95%: 0.028531
99%: 0.028603
time_pretransfer
avg: 0.028087
median: 0.027805
min: 0.027752
max: 0.028703
75%: 0.028254
95%: 0.028613
99%: 0.028685
time_ttfb
avg: 0.056753
median: 0.057248
min: 0.055312
max: 0.057698
75%: 0.057473
95%: 0.057653
99%: 0.057689
time_total
avg: 0.065849
median: 0.066897
min: 0.063218
max: 0.067432
75%: 0.067164
95%: 0.067378
99%: 0.067421
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.002394,0.002388,0.002387,0.002407,0.002398,0.002405,0.002407
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.011126,0.011143,0.011001,0.011234,0.011188,0.011225,0.011232
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.028004,0.027721,0.027669,0.028621,0.028171,0.028531,0.028603
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.028087,0.027805,0.027752,0.028703,0.028254,0.028613,0.028685
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.056753,0.057248,0.055312,0.057698,0.057473,0.057653,0.057689
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.065849,0.066897,0.063218,0.067432,0.067164,0.067378,0.067421
Run compare and tell curl to connect to domain=servermanager.guide using IPv6 address 2606:4700:10::ac43:26be
domain=servermanager.guide
./curltimes.sh compare https://$domain 2606:4700:10::ac43:26be
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.002273,0.002341,0.002040,0.002438,0.002389,0.002428,0.002436
tls13: 0.002303,0.002342,0.002106,0.002461,0.002402,0.002449,0.002459
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.010944,0.010974,0.010692,0.011165,0.011069,0.011146,0.011161
tls13: 0.010984,0.011001,0.010871,0.011080,0.011040,0.011072,0.011078
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.037632,0.037541,0.037520,0.037834,0.037687,0.037805,0.037828
tls13: 0.027178,0.026750,0.026311,0.028474,0.027612,0.028302,0.028440
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.037710,0.037609,0.037608,0.037914,0.037762,0.037883,0.037908
tls13: 0.027265,0.026839,0.026394,0.028561,0.027700,0.028389,0.028527
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.074693,0.078118,0.064590,0.081372,0.079745,0.081047,0.081307
tls13: 0.061370,0.056089,0.054502,0.073519,0.064804,0.071776,0.073170
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.083769,0.087006,0.074226,0.090074,0.088540,0.089767,0.090013
tls13: 0.070788,0.064854,0.064317,0.083194,0.074024,0.081360,0.082827
Run compare and tell curl to connect to domain=servermanager.guide using all available IP addresses attached to the domain
dig +short AAAA servermanager.guide
2606:4700:10::ac43:26be
2606:4700:10::6816:42fa
2606:4700:10::6816:43fa
dig +short AAAA servermanager.guide | while read ip; do echo; domain=servermanager.guide; ./curltimes.sh compare https://$domain $ip; done
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 33
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.000025,0.000025,0.000020,0.000026,0.000025,0.000026,0.000026
tls13: 0.000025,0.000025,0.000024,0.000026,0.000026,0.000026,0.000026
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.010083,0.011044,0.008652,0.011193,0.011088,0.011148,0.011182
tls13: 0.010099,0.011044,0.008677,0.011190,0.011110,0.011149,0.011177
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.039038,0.040243,0.033176,0.047499,0.041386,0.044336,0.046505
tls13: 0.029268,0.029406,0.024333,0.040761,0.030714,0.035750,0.039538
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.039119,0.040309,0.033263,0.047585,0.041480,0.044415,0.046588
tls13: 0.029349,0.029485,0.024418,0.040846,0.030803,0.035830,0.039621
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.087151,0.069190,0.056990,0.663826,0.072905,0.081628,0.478225
tls13: 0.058539,0.057606,0.047161,0.077984,0.063481,0.071283,0.075865
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.097619,0.079912,0.065917,0.672491,0.083919,0.093142,0.487833
tls13: 0.069042,0.067686,0.055383,0.096125,0.074209,0.085111,0.093838
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:43fa) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 33
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.000025,0.000025,0.000023,0.000026,0.000026,0.000026,0.000026
tls13: 0.000025,0.000025,0.000024,0.000029,0.000026,0.000026,0.000028
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.008726,0.008719,0.008653,0.008915,0.008745,0.008799,0.008880
tls13: 0.008718,0.008712,0.008656,0.008857,0.008743,0.008792,0.008837
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.034422,0.033977,0.032593,0.040353,0.034435,0.039491,0.040205
tls13: 0.025299,0.024797,0.023931,0.036109,0.025368,0.027200,0.033315
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.034506,0.034068,0.032667,0.040433,0.034525,0.039572,0.040285
tls13: 0.025381,0.024882,0.024011,0.036191,0.025455,0.027284,0.033400
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.067356,0.060527,0.052128,0.151831,0.069639,0.093947,0.141133
tls13: 0.053913,0.052717,0.044503,0.074495,0.055531,0.067609,0.073210
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.076999,0.070714,0.061163,0.162636,0.081503,0.104291,0.152367
tls13: 0.063297,0.061701,0.054232,0.084139,0.066266,0.078864,0.083847
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 33
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.000025,0.000025,0.000021,0.000037,0.000026,0.000026,0.000034
tls13: 0.000025,0.000025,0.000022,0.000028,0.000026,0.000027,0.000028
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.008706,0.008701,0.008633,0.008807,0.008734,0.008772,0.008800
tls13: 0.008702,0.008693,0.008632,0.008824,0.008726,0.008769,0.008814
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.034213,0.033580,0.032419,0.041174,0.034753,0.038515,0.041058
tls13: 0.025060,0.024716,0.024137,0.029303,0.025110,0.027225,0.028939
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.034297,0.033668,0.032494,0.041251,0.034843,0.038605,0.041136
tls13: 0.025142,0.024795,0.024216,0.029374,0.025191,0.027307,0.029012
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.062295,0.061499,0.053344,0.077344,0.065682,0.073393,0.076253
tls13: 0.052009,0.051708,0.044970,0.061672,0.053383,0.059193,0.061464
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.073144,0.072723,0.061965,0.111716,0.075453,0.088226,0.105054
tls13: 0.061540,0.061019,0.052092,0.074847,0.062104,0.069454,0.073440
curltimes.sh supports environment variables to override the defaults. Currently, supported variables include:
curlruns- value set overridestotalvariable within script which determines how many curl runs and samples are collected.ipv4=1- enables and forces IPv4 curl connection.h3=1- enables HTTP/3 forjson,json-max,csv,csv-sum,csv-max,csv-max-sumoptions but not supported incomparemode as TLSv1.2/TLSv1.3 are not used as HTTP/3 is over a QUIC connection. HTTP/3 mode only works once you have edited curl binary log and library paths as outlined here.bin_h3- set path to your curl HTTP/3 binarylib_h3- set path to your curl HTTP/3 library directorycustom_ciphers=1- enables use of custom cipher preferences used by curl via--ciphersflag for TLSv1.2 and--tls13-ciphersflag for TLSv1.3 via curl cipher preferences defined in 2 variables -curl_ciphers_tls12='ECDHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-GCM-SHA256'(ordered right to left) andcurl_ciphers_tls13='TLS_AES_128_GCM_SHA256:TLS_AES_256_GCM_SHA384:TLS_CHACHA20_POLY1305_SHA256'(ordered left to right).
unset bin_h3
unset lib_h3
unset h3
unset ipv4
unset curlruns
unset custom_ciphers
Compare TLSv1.2 vs TLSv1.3 on Ubuntu 20.04.1 LTS's curl v7.68 with native curl ciphers. Notice TLSv1.2 curl 7.68 natively uses ECDHE-ECDSA-CHACHA20-POLY1305 and TLSv1.3 uses TLS_AES_256_GCM_SHA384
export custom_ciphers=0; ./curltimes.sh compare https://servermanager.guide
-TLSv1.2 ECDHE-ECDSA-CHACHA20-POLY1305
+TLSv1.3 TLS_AES_256_GCM_SHA384
HTTP/2
curl 7.68.0
Connected to servermanager.guide (104.22.66.250) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.006002,0.005802,0.001994,0.010209,0.008006,0.009768,0.010121
tls13: 0.008544,0.005324,0.001612,0.018696,0.012010,0.017359,0.018429
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.008041,0.007807,0.004117,0.012198,0.010002,0.011759,0.012110
tls13: 0.010495,0.007277,0.003518,0.020689,0.013983,0.019348,0.020421
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.054065,0.045499,0.041126,0.075569,0.060534,0.072562,0.074968
tls13: 0.046345,0.035228,0.028690,0.075118,0.055173,0.071129,0.074320
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.054320,0.045799,0.041353,0.075809,0.060804,0.072808,0.075209
tls13: 0.046603,0.035526,0.028947,0.075337,0.055431,0.071356,0.074541
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.088164,0.078886,0.073939,0.111667,0.095276,0.108389,0.111011
tls13: 0.082943,0.073260,0.069501,0.106068,0.089664,0.102787,0.105412
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.096051,0.085332,0.081077,0.121745,0.103539,0.118104,0.121017
tls13: 0.092683,0.081521,0.077531,0.118996,0.100259,0.115248,0.118246
versus compare TLSv1.2 vs TLSv1.3 on Ubuntu 20.04.1 LTS's curl v7.68 with custom curl ciphers. Notice with custom_ciphers=1 environment variable enabled, TLSv1.2 curl 7.68 uses ECDHE-ECDSA-AES128-GCM-SHA256 and TLSv1.3 uses TLS_AES_128_GCM_SHA256
export custom_ciphers=1; ./curltimes.sh compare https://servermanager.guide
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
curl 7.68.0
Connected to servermanager.guide (104.22.66.250) port 443 (#0)
Cloudflare proxied https://servermanager.guide
Sample Size: 3
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.003613,0.001637,0.001623,0.007578,0.004607,0.006984,0.007459
tls13: 0.003283,0.002643,0.002293,0.004913,0.003778,0.004686,0.004868
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.005418,0.003617,0.003602,0.009035,0.006326,0.008493,0.008927
tls13: 0.005273,0.004694,0.004222,0.006902,0.005798,0.006681,0.006858
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.042692,0.030561,0.027277,0.070238,0.050400,0.066270,0.069444
tls13: 0.050650,0.044449,0.037568,0.069934,0.057192,0.067385,0.069424
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.042925,0.030787,0.027507,0.070481,0.050634,0.066512,0.069687
tls13: 0.051616,0.046902,0.037776,0.070171,0.058537,0.067844,0.069706
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.072727,0.060584,0.049837,0.107761,0.084172,0.103043,0.106817
tls13: 0.086993,0.087799,0.070482,0.102697,0.095248,0.101207,0.102399
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.080906,0.064812,0.059272,0.118635,0.091723,0.113253,0.117559
tls13: 0.095742,0.092309,0.082541,0.112377,0.102343,0.110370,0.111976
Compare Ubuntu 20.04.1 LTS's curl 7.68 native TLSv1.2 & TLSv1.3 ciphers with custom ciphers with curl resolved to same IP
diff -u <(export custom_ciphers=0; ./curltimes.sh compare https://servermanager.guide/ 104.22.66.250) <(export custom_ciphers=1; ./curltimes.sh compare https://servermanager.guide/ 104.22.66.250)
--- /dev/fd/63 2020-08-14 23:46:01.977813329 +0000
+++ /dev/fd/62 2020-08-14 23:46:01.977813329 +0000
@@ -1,5 +1,5 @@
--TLSv1.2 ECDHE-ECDSA-CHACHA20-POLY1305
-+TLSv1.3 TLS_AES_256_GCM_SHA384
+-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
++TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
curl 7.68.0
Connected to servermanager.guide (104.22.66.250) port 443 (#0)
@@ -8,25 +8,25 @@
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.011205,0.004589,0.003083,0.025942,0.015265,0.023807,0.025515
-tls13: 0.004012,0.004849,0.001657,0.005529,0.005189,0.005461,0.005515
+tls12: 0.011578,0.008823,0.004229,0.021681,0.015252,0.020395,0.021424
+tls13: 0.006238,0.006474,0.004226,0.008013,0.007244,0.007859,0.007982
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.014815,0.009951,0.006515,0.027978,0.018965,0.026175,0.027617
-tls13: 0.006937,0.006957,0.003133,0.010721,0.008839,0.010345,0.010646
+tls12: 0.013304,0.010206,0.006130,0.023575,0.016890,0.022238,0.023308
+tls13: 0.008224,0.008406,0.006310,0.009955,0.009180,0.009800,0.009924
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.096528,0.090889,0.048101,0.150595,0.120742,0.144624,0.149401
-tls13: 0.073811,0.080793,0.020515,0.120126,0.100460,0.116193,0.119339
+tls12: 0.083564,0.064394,0.046253,0.140044,0.102219,0.132479,0.138531
+tls13: 0.069499,0.054430,0.053008,0.101059,0.077745,0.096396,0.100126
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.096752,0.091098,0.048339,0.150818,0.120958,0.144846,0.149624
-tls13: 0.074028,0.081004,0.020730,0.120351,0.100678,0.116416,0.119564
+tls12: 0.083794,0.064604,0.046472,0.140307,0.102456,0.132737,0.138793
+tls13: 0.069718,0.054643,0.053233,0.101277,0.077960,0.096614,0.100344
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.145099,0.170080,0.086449,0.178767,0.174423,0.177898,0.178593
-tls13: 0.143531,0.152353,0.105358,0.172883,0.162618,0.170830,0.172472
+tls12: 0.126950,0.110409,0.093734,0.176706,0.143557,0.170076,0.175380
+tls13: 0.115679,0.100193,0.096733,0.150110,0.125151,0.145118,0.149112
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.156260,0.182053,0.093776,0.192951,0.187502,0.191861,0.192733
-tls13: 0.151158,0.159049,0.114568,0.179858,0.169453,0.177777,0.179442
+tls12: 0.137379,0.124460,0.101905,0.185772,0.155116,0.179641,0.184546
+tls13: 0.128206,0.110756,0.110158,0.163703,0.137230,0.158408,0.162644
compare IPv4 vs IPv6 curltimes.sh runs
diff -u <(export ipv4=1; ./curltimes.sh compare https://servermanager.guide/) <(export ipv4=0; ./curltimes.sh compare https://servermanager.guide/)
--- /dev/fd/63 2020-08-05 17:32:32.773262582 +0000
+++ /dev/fd/62 2020-08-05 17:32:32.773262582 +0000
@@ -2,31 +2,31 @@
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
- Connected to servermanager.guide (104.22.66.250) port 443 (#0)
+ Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Cloudflare proxied https://servermanager.guide/
Sample Size: 11
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.002077,0.002059,0.002006,0.002299,0.002097,0.002205,0.002280
-tls13: 0.002092,0.002056,0.001963,0.002428,0.002130,0.002295,0.002401
+tls12: 0.002144,0.002097,0.002030,0.002421,0.002147,0.002372,0.002411
+tls13: 0.002161,0.002109,0.002058,0.002488,0.002163,0.002407,0.002472
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.013772,0.011036,0.010907,0.021395,0.015862,0.021358,0.021388
-tls13: 0.013775,0.011050,0.010858,0.021438,0.016016,0.021423,0.021435
+tls12: 0.010776,0.010724,0.010674,0.011026,0.010810,0.011016,0.011024
+tls13: 0.010855,0.010786,0.010701,0.011132,0.010897,0.011083,0.011122
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.047508,0.037708,0.036823,0.077156,0.053092,0.076873,0.077099
-tls13: 0.033566,0.027502,0.026627,0.050332,0.039158,0.050028,0.050271
+tls12: 0.036577,0.035408,0.034458,0.045465,0.036535,0.041822,0.044736
+tls13: 0.027222,0.027004,0.026216,0.029019,0.027584,0.028997,0.029015
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.047597,0.037784,0.036901,0.077249,0.053159,0.076952,0.077190
-tls13: 0.033648,0.027582,0.026706,0.050414,0.039242,0.050108,0.050353
+tls12: 0.036664,0.035513,0.034550,0.045535,0.036618,0.041896,0.044807
+tls13: 0.027305,0.027097,0.026301,0.029102,0.027668,0.029083,0.029098
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.084272,0.072064,0.061022,0.126004,0.097472,0.125499,0.125903
-tls13: 0.068917,0.059372,0.051965,0.100478,0.084044,0.100301,0.100443
+tls12: 0.063700,0.064039,0.055325,0.075642,0.067243,0.073135,0.075141
+tls13: 0.053768,0.052910,0.047872,0.060991,0.054959,0.060255,0.060844
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
-tls12: 0.096266,0.081401,0.070310,0.145221,0.111710,0.144299,0.145037
-tls13: 0.078791,0.068584,0.060828,0.120495,0.092188,0.114550,0.119306
+tls12: 0.073090,0.073095,0.064207,0.084682,0.076296,0.082443,0.084234
+tls13: 0.062669,0.061688,0.056864,0.069835,0.064686,0.069074,0.069683
example setting h3=1, ipv4=1 and curlruns=9 and bin_h3='/usr/local/src/curl/src/curl' and lib_h3='/usr/lib/x86_64-linux-gnu'
export bin_h3='/usr/local/src/curl/src/curl'
export lib_h3='/usr/lib/x86_64-linux-gnu'
export h3=1
export ipv4=1
export curlruns=9
./curltimes.sh csv-max-sum https://servermanager.guide
curl 7.72.0-DEV
HTTP/3
Connected to servermanager.guide (104.22.67.250) port 443 (#0)
Sample Size: 9
0.002295,0.016681,0,0.016746,0.051228,0.063913
0.002299,0.018685,0,0.018749,0.054747,0.068125
0.001971,0.015321,0,0.015386,0.055653,0.067125
0.002293,0.019275,0,0.019341,0.059958,0.074864
0.002361,0.017828,0,0.017891,0.056725,0.07114
0.00238,0.017844,0,0.017908,0.050139,0.063757
0.002352,0.01534,0,0.015406,0.053851,0.065687
0.002448,0.016069,0,0.016134,0.044222,0.056
0.002016,0.014094,0,0.014158,0.050546,0.06078
time_dns
avg: 0.002268
median: 0.002299
min: 0.001971
max: 0.002448
75%: 0.002361
95%: 0.002421
99%: 0.002443
time_connect
avg: 0.016793
median: 0.016681
min: 0.014094
max: 0.019275
75%: 0.017844
95%: 0.019039
99%: 0.019228
time_appconnect
avg: 0.000000
median: 0.000000
min: 0.000000
max: 0.000000
75%: 0.000000
95%: 0.000000
99%: 0.000000
time_pretransfer
avg: 0.016858
median: 0.016746
min: 0.014158
max: 0.019341
75%: 0.017908
95%: 0.019104
99%: 0.019294
time_ttfb
avg: 0.053008
median: 0.053851
min: 0.044222
max: 0.059958
75%: 0.055653
95%: 0.058665
99%: 0.059699
time_total
avg: 0.065710
median: 0.065687
min: 0.056000
max: 0.074864
75%: 0.068125
95%: 0.073374
99%: 0.074566
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.002268,0.002299,0.001971,0.002448,0.002361,0.002421,0.002443
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.016793,0.016681,0.014094,0.019275,0.017844,0.019039,0.019228
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.016858,0.016746,0.014158,0.019341,0.017908,0.019104,0.019294
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.053008,0.053851,0.044222,0.059958,0.055653,0.058665,0.059699
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.065710,0.065687,0.056000,0.074864,0.068125,0.073374,0.074566
example setting h3=1, ipv4=1 and curlruns=9
export h3=1; export curlruns=9; ./curltimes.sh csv-max-sum https://servermanager.guide
curl 7.72.0-DEV
HTTP/3
Connected to servermanager.guide (104.22.66.250) port 443 (#0)
Sample Size: 9
0.002321,0.015649,0,0.015713,0.059255,0.074366
0.002275,0.01915,0,0.019216,0.060405,0.073003
0.002069,0.014761,0,0.014825,0.040994,0.051945
0.002372,0.015474,0,0.015538,0.047742,0.058395
0.002302,0.016191,0,0.016256,0.083929,0.096794
0.002396,0.020889,0,0.020954,0.050261,0.061726
0.002317,0.016253,0,0.016317,0.075135,0.089547
0.002062,0.016816,0,0.016882,0.045394,0.058711
0.002357,0.014203,0,0.014267,0.041617,0.053641
time_dns
avg: 0.002275
median: 0.002317
min: 0.002062
max: 0.002396
75%: 0.002357
95%: 0.002386
99%: 0.002394
time_connect
avg: 0.016598
median: 0.016191
min: 0.014203
max: 0.020889
75%: 0.016816
95%: 0.020193
99%: 0.020750
time_appconnect
avg: 0.000000
median: 0.000000
min: 0.000000
max: 0.000000
75%: 0.000000
95%: 0.000000
99%: 0.000000
time_pretransfer
avg: 0.016663
median: 0.016256
min: 0.014267
max: 0.020954
75%: 0.016882
95%: 0.020259
99%: 0.020815
time_ttfb
avg: 0.056081
median: 0.050261
min: 0.040994
max: 0.083929
75%: 0.060405
95%: 0.080411
99%: 0.083225
time_total
avg: 0.068681
median: 0.061726
min: 0.051945
max: 0.096794
75%: 0.074366
95%: 0.093895
99%: 0.096214
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.002275,0.002317,0.002062,0.002396,0.002357,0.002386,0.002394
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.016598,0.016191,0.014203,0.020889,0.016816,0.020193,0.020750
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.000000,0.000000,0.000000,0.000000,0.000000,0.000000,0.000000
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.016663,0.016256,0.014267,0.020954,0.016882,0.020259,0.020815
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.056081,0.050261,0.040994,0.083929,0.060405,0.080411,0.083225
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.068681,0.061726,0.051945,0.096794,0.074366,0.093895,0.096214
example setting ipv4=1 and curlruns=9
export ipv4=1; export curlruns=9; ./curltimes.sh compare https://servermanager.guide
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (104.22.67.250) port 443 (#0)
Sample Size: 9
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.002266,0.002306,0.001963,0.002981,0.002375,0.002752,0.002935
tls13: 0.002164,0.002065,0.002008,0.002353,0.002305,0.002343,0.002351
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.011470,0.011221,0.010863,0.012769,0.011674,0.012554,0.012726
tls13: 0.011150,0.011199,0.010907,0.011664,0.011224,0.011501,0.011631
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.038583,0.037770,0.035704,0.044849,0.040180,0.043083,0.044496
tls13: 0.028934,0.028282,0.026903,0.033745,0.030355,0.032446,0.033485
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.038659,0.037840,0.035786,0.044915,0.040259,0.043149,0.044562
tls13: 0.029023,0.028363,0.026984,0.033866,0.030450,0.032554,0.033604
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.073622,0.068073,0.060629,0.118547,0.074154,0.101701,0.115178
tls13: 0.062501,0.055822,0.051451,0.108622,0.063113,0.090978,0.105093
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.085110,0.077332,0.069529,0.147206,0.083043,0.122934,0.142352
tls13: 0.071165,0.064227,0.060406,0.117624,0.070848,0.100372,0.114174
example of setting curlruns=9
export curlruns=9; ./curltimes.sh compare https://servermanager.guide
curl 7.72.0-DEV
-TLSv1.2 ECDHE-ECDSA-AES128-GCM-SHA256
+TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::6816:42fa) port 443 (#0)
Sample Size: 9
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.002187,0.002133,0.002044,0.002341,0.002262,0.002328,0.002338
tls13: 0.002298,0.002338,0.002043,0.002561,0.002448,0.002521,0.002553
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.011639,0.010946,0.010742,0.013267,0.013115,0.013238,0.013261
tls13: 0.011529,0.011110,0.010665,0.013538,0.011268,0.013376,0.013506
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.037602,0.035707,0.034805,0.042342,0.042305,0.042340,0.042342
tls13: 0.028889,0.027606,0.026484,0.032393,0.031420,0.032186,0.032352
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.037685,0.035797,0.034889,0.042421,0.042386,0.042421,0.042421
tls13: 0.028973,0.027697,0.026567,0.032475,0.031508,0.032268,0.032434
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.068222,0.068780,0.057609,0.080518,0.071698,0.077504,0.079915
tls13: 0.063180,0.059101,0.053305,0.086026,0.062583,0.081901,0.085201
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
tls12: 0.078020,0.077660,0.067355,0.091523,0.080867,0.088713,0.090961
tls13: 0.072594,0.069236,0.062089,0.094605,0.071386,0.091319,0.093948
export curlruns=9; ./curltimes.sh csv-max-sum https://servermanager.guide
curl 7.72.0-DEV
TLSv1.3 TLS_AES_128_GCM_SHA256
HTTP/2
Connected to servermanager.guide (2606:4700:10::ac43:26be) port 443 (#0)
Sample Size: 9
0.002307,0.010995,0.038922,0.039008,0.07083,0.080726
0.015496,0.024134,0.043342,0.043424,0.068281,0.078138
0.002345,0.011095,0.02733,0.027414,0.048162,0.057521
0.014392,0.025453,0.044971,0.045054,0.098739,0.107577
0.002321,0.011045,0.028931,0.029016,0.097482,0.106865
0.002073,0.010717,0.030454,0.030537,0.092841,0.103577
0.00207,0.010795,0.030796,0.030884,0.066117,0.075068
0.002316,0.01333,0.031471,0.031555,0.061374,0.069335
0.002076,0.013093,0.03159,0.031673,0.078254,0.089818
time_dns
avg: 0.005044
median: 0.002316
min: 0.002070
max: 0.015496
75%: 0.002345
95%: 0.015054
99%: 0.015408
time_connect
avg: 0.014517
median: 0.011095
min: 0.010717
max: 0.025453
75%: 0.013330
95%: 0.024925
99%: 0.025347
time_appconnect
avg: 0.034201
median: 0.031471
min: 0.027330
max: 0.044971
75%: 0.038922
95%: 0.044319
99%: 0.044841
time_pretransfer
avg: 0.034285
median: 0.031555
min: 0.027414
max: 0.045054
75%: 0.039008
95%: 0.044402
99%: 0.044924
time_ttfb
avg: 0.075787
median: 0.070830
min: 0.048162
max: 0.098739
75%: 0.092841
95%: 0.098236
99%: 0.098638
time_total
avg: 0.085403
median: 0.080726
min: 0.057521
max: 0.107577
75%: 0.103577
95%: 0.107292
99%: 0.107520
time_dns
avg:,median:,min:,max:,75%:,95%:,99%:
0.005044,0.002316,0.002070,0.015496,0.002345,0.015054,0.015408
time_connect
avg:,median:,min:,max:,75%:,95%:,99%:
0.014517,0.011095,0.010717,0.025453,0.013330,0.024925,0.025347
time_appconnect
avg:,median:,min:,max:,75%:,95%:,99%:
0.034201,0.031471,0.027330,0.044971,0.038922,0.044319,0.044841
time_pretransfer
avg:,median:,min:,max:,75%:,95%:,99%:
0.034285,0.031555,0.027414,0.045054,0.039008,0.044402,0.044924
time_ttfb
avg:,median:,min:,max:,75%:,95%:,99%:
0.075787,0.070830,0.048162,0.098739,0.092841,0.098236,0.098638
time_total
avg:,median:,min:,max:,75%:,95%:,99%:
0.085403,0.080726,0.057521,0.107577,0.103577,0.107292,0.107520