os/bluestore: Recompression, part 3. Segmented onode. #57448
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Introduce printer class that allows to select parts of Blob that are to be printed. It severly reduced amount of clutter in output. Usage: using P = Bluestore::Blob::printer; dout << blob->printer(P::ptr + P::sdisk + P::schk); Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Modify Extent similar to Blob, so that one can use improved Blob printing when printing extents. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Now printing Blob can include buffers. There are 2 variants: - 'buf' same as original in dump_onode - 'sbuf' only fundamental params, no ptr etc. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Added nice replacement for dump_onode function. Introduce printer class that allows to select parts of Onode that are to be printed. It severly reduced amount of clutter in output. Usage: using P = Bluestore::printer; dout << blob->print(P::ptr + P::sdisk + P::schk + P::buf + P::attrs); Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
- moved operator<< to BlueStore_debug file
- upcased Printer {} flags
- more reliable heap begin detection
- fixup after rebase
Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
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This was referenced May 13, 2024
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Small improvement on debug output. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Created new variant of bluestore_blob_t::release_extents function. Now the function takes range [offset~length] as an argument, a simplification that allows it to have much better performance. Created comprehensive unit test, tests 40k random blobs. The unit test does not test for a potential case of having bluestore_blob_t.extents that are not allocation unit aligned. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
p2remain gives remaining data in a block. It simialar to p2nphase, but for 0 offset returns full size. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
New version of put(). It is simpler and faster, but does not allow for overprovisioning of used AUs. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Created dedicated mutator of ExtentMap that is useful when a logical extent must be split. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Introducing new logic of Onode processing during write. New punch_hole_2 function empties range, but keeps track of elements: - allocations that are no longer used - blobs that are now empty - shared blobs that got modified - statfs changes to apply later This change allows to reuse allocation for deferred freely, which means that we can use allocations in deferred mode in other blob then they come from. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Comprehensive tests for punch_hole_2. New formulation of punch_hole_2 makes it very easy to create patterns and inspect results. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
It is more organized this way. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Set of various simple functions to simplify code. No special logic here. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
BlueStore::Writer is a toolkit to give more options to control write. It gives more control over compression process, letting user of the class manually split incoming data to blobs. Now for large writes all but last blob can be fully filled with data. There is now a single place that decides on deferred/direct. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Extensive tests for BlueStore::Writer. Some extra debug hooks for BlueStore. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
New "write_lat" tracks wallclock time spent in execution of BlueStore::_write(). Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Added _do_write_v2 function to BlueStore. Function is not integrated yet. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Add new conf variable. bluestore_write_v2 = true : use new _do_write_v2() function bluestore_write_v2 = false : use legacy _do_write() function This variable is read only at start time. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
We need to scan all extents that are under proposed read / padding. It was broken and we could clear out something defined. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
The search must go over entire range where we can have aligned mutable blobs. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
A review proposal. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Result of ongoing review. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
It was not checked if necessary location is still within blob range. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
Split object data into segments of conf.bluestore_segment_data_size bytes. This means that no blob will be in two segments at the same time. Modified reshard function to prefer segment separation lines. As a result no spanning blobs are created. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
New segment_size pool option creates segmentation in BlueStore Onodes. This simplifies metadata encoding. Signed-off-by: Adam Kupczyk <akupczyk@ibm.com>
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This is adaptation of standalone #55968 for recompression PR.
The original PR will be closed in the future.
#54075 Nice debugs.
#54504 New write path.
#57448 Segmented onode.
#56975 Main
#57450 Test
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