Crawler mode speed

[Zibri]

Even increasing the connection limits I notice that in crawler mode it gets only 60 peers/minute.
Is there a setting to increase the speed?
With another crawler I have I can get 100000/hour!

[shiyanhui]

Did you run it in local network? This crawler can't run behind NAT now.

[Zibri]

Sure. I read the documentation. Throughput seems to be 60-100 per minute. With p2pspider I get 3200/minute after an hour.

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-------- Messaggio originale -------- Da: Lime <notifications@github.com> Data:10/01/2017 13:54 (GMT+02:00) A: shiyanhui/dht <dht@noreply.github.com> Cc: Zibri <zibri@zibri.org>,Author <author@noreply.github.com> Oggetto: Re: [shiyanhui/dht] Crawler mode speed (#17) Did you run it in local network? This crawler can't run behind NAT now. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[shiyanhui]

Is it the sample that you are running?

• There are two kind of peers message in dht protocol, get_peers and announce_peer. get_peers messages are far more than announce_peer. Only announce_peer is what we want. The example will only print successful BT seed. I don't know what p2pspider print.
• We got announce_peer message, and then we fetch the BT seed. If it fails, the ip:port will be put in blacklist, and DHT crawler will not fetch it until sometime in the future.

[Zibri]

Yes, I am running the sample. I understand what you say but on the same pc, with the same bootstrap servers the two programs behave differently. Yours starts at about 60 peers/minute and stays there even after 3 hours. p2pspider (which I suggest you to test just for comparison) starts also at 60 then in about 2 hours is at full speed and consumes almost half of my bandwidth! and also 100% cpu time... p2pspider uses nodejs because it’s javascript I just wanted to test yours to see if I get similar results with less cpu time (bandwidth comes with it I think) or, maybe is anything I need to set? Regards, Zibri http://www.zibri.org https://twitter.com/Zibri From: Lime Sent: Wednesday, January 11, 2017 03:03 To: shiyanhui/dht Cc: Zibri ; Author Subject: Re: [shiyanhui/dht] Crawler mode speed (#17) Is it the sample that you are running? a.. There are two kind of peers message in dht protocol, get_peers and announce_peer. Only announce_peer is what we want. The example will only print successful BT seed. I don't know what p2pspider print. b.. We got announce_peer message, and then we fetch the BT seed. If it fails, the IP:port will be put in blacklist, and DHT crawler will fetch it again after maybe one hour. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread.

[shiyanhui]

OK, I'll figure it out.

[ilcn]

I have the same question as Zibri. Intrinsically golang should go faster than nodejs, and I am listening for annouce peer right now. But please let us know if what in the config we can tweek to make the spider mode go faster.
Thanks

[fanpei91]

I have rewritten p2pspider from node to golang recently. Same efficiency as before, but higher performance. @Zibri

[Zibri]

At the moment I am using simdht with pypy... check it out. But I still think C is the way... Inviato dal mio dispositivo Samsung

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-------- Messaggio originale -------- Da: fanpei91 <notifications@github.com> Data: 13/12/17 16:39 (GMT+01:00) A: shiyanhui/dht <dht@noreply.github.com> Cc: Zibri <zibri@zibri.org>, Author <author@noreply.github.com> Oggetto: Re: [shiyanhui/dht] Crawler mode speed (#17) I have rewritten p2pspider from node to golang recently. Same efficiency as before, but higher performance. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub, or mute the thread. {"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/shiyanhui/dht","title":"shiyanhui/dht","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/shiyanhui/dht"}},"updates":{"snippets":[{"icon":"PERSON","message":"@fanpei91 in #17: I have rewritten [p2pspider](https://github.com/fanpei91/p2pspider) from node to golang recently. Same efficiency as before, but higher performance."}],"action":{"name":"View Issue","url":"#17 (comment)"}}}

[fanpei91]

simdht for golang is here godht

I don't think so c is the way. You need to learn golang 1.9 runtime's performance.

[Zibri]

I am checking dht in go… I see the output: link: magnet:?xt=urn:btih:49a2afaa0a3bb5e1eb45cb2cc598c7ed6cd9c2c5 node: 2.136.205.155:58236 peer: 2.136.205.155:58236 How to include the announced FILE NAME (if present in the announcement)? What I need is just the has and the name. Sent from Mail for Windows 10 From: fanpei91 Sent: Wednesday, December 13, 2017 18:04 To: shiyanhui/dht Cc: Zibri; Mention Subject: Re: [shiyanhui/dht] Crawler mode speed (#17) simdht for golang is here godht I don't think so c is the way. You need to learn golang 1.9 runtime's performance. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[Zibri]

Hmm Even if I never coded in go I did this: for announce := range dht.Announce { rawa := announce.Raw["a"].(map[string]interface{}) fmt.Println(fmt.Sprintf("link: magnet:?xt=urn:btih:%v\nraw: %s\n", announce.InfohashHex, rawa["name"], )) And now it writes hash and name. Hmm.. I wonder the speed compared to simDHT with pypy From: fanpei91 Sent: Wednesday, December 13, 2017 18:04 To: shiyanhui/dht Cc: Zibri; Mention Subject: Re: [shiyanhui/dht] Crawler mode speed (#17) simdht for golang is here godht I don't think so c is the way. You need to learn golang 1.9 runtime's performance. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[Zibri]

By the way, as of now my crawler (modified simDHT running multithreaded is doing:  (20494 hashes / min) (8019 unique hashes /min)  Bandwidth: 11834.47 / 6569.03 Kbit/s But I think that with the right coding it could go much higher than that! From: fanpei91 Sent: Wednesday, December 13, 2017 18:04 To: shiyanhui/dht Cc: Zibri; Mention Subject: Re: [shiyanhui/dht] Crawler mode speed (#17) simdht for golang is here godht I don't think so c is the way. You need to learn golang 1.9 runtime's performance. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.

[Zibri]

I did some testing.. Even putting 1500 friends/sec the speed is ridiculous.. pid 1217 speed 27 running time 29:51 Total speed: 27 Top speed: 75 Top speed 75? After half an hour? I get that speed in 1 minutes with the modified simdht. And look the speed now: pid 3687 speed 12561 running time 19-19:34:17 pid 3686 speed 6662 running time 19-19:34:17 Total speed: 19223 TOP SPEED Top speed: 19223 That’s 20K hashes per minute! From: fanpei91 Sent: Wednesday, December 13, 2017 18:04 To: shiyanhui/dht Cc: Zibri; Mention Subject: Re: [shiyanhui/dht] Crawler mode speed (#17) simdht for golang is here godht I don't think so c is the way. You need to learn golang 1.9 runtime's performance. — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub, or mute the thread.