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25 Commits (a3d3949dce4aae5d48a94a3d32ed1dfeee392c57)

Author SHA1 Message Date
Vitaliy Filippov a3d3949dce Do not overwrite same journal sector multiple times 
It doesn't reduce actual WA, but it reduces tail latency (Q=32, 10% / 50% / 90% / 99% / 99.95%):
- write: 766us/979us/1090us/1303us/1729us vs 1074us/1450us/2212us/3261us/4113us
- sync: 701us/881us/1188us/1762us/2540us vs 269us/955us/1663us/2638us/4146us
 2020-01-15 02:53:01 +03:00
Vitaliy Filippov 36d8c8724f Fix sparse reads using bitmap, fix journal replay (we could sometimes lose its end) 2020-01-12 23:38:33 +03:00
Vitaliy Filippov 4b05bde3a2 Block writes earlier than sync/stabilize would be blocked, too 2020-01-10 20:05:17 +03:00
Vitaliy Filippov bf3eecc159 Extract 512 to constants 2020-01-06 14:11:47 +03:00
Vitaliy Filippov a7e74670a5 Split blockstore implementation and interface header 2019-12-15 14:57:18 +03:00
Vitaliy Filippov 749ab6e2c6 Rename blockstore_operation to blockstore_op_t 2019-12-15 14:57:18 +03:00
Vitaliy Filippov 9260cd263a Verify data crc32 when reading journal 2019-11-30 23:32:10 +03:00
Vitaliy Filippov 40781c67b2 Trim journal on start 2019-11-29 02:13:32 +03:00
Vitaliy Filippov 9fa0d3325f Support inmemory journal 2019-11-28 18:06:50 +03:00
Vitaliy Filippov 78807eb244 Fix journal space check (do not overwrite the beginning of the journal) 2019-11-27 11:35:11 +03:00
Vitaliy Filippov 74d8ea2f01 Calculate data crc32c 2019-11-27 02:20:38 +03:00
Vitaliy Filippov d0fdcbd7ff Add optimized crc32c 2019-11-25 02:30:06 +03:00
Vitaliy Filippov 82a2b8e7d9 Fix some extra bugs and it seems now it is even able to trim the journal 2019-11-22 12:08:44 +03:00
Vitaliy Filippov 299b7288d5 Fix journal loading 2019-11-21 00:52:52 +03:00
Vitaliy Filippov 3bfa2f5f39 Fix io_uring submission, journal sector selection 2019-11-19 18:07:40 +03:00
Vitaliy Filippov a4aaa3c7c7 First implementation of journal trimming 
In theory it's possible to start testing blockstore at this point!
 2019-11-15 16:12:55 +03:00
Vitaliy Filippov 0627dd0f5e Used journal sector tracking 2019-11-15 02:04:19 +03:00
Vitaliy Filippov 1c6b9778a4 Handle all io_uring events using lambdas 2019-11-13 22:46:42 +03:00
Vitaliy Filippov ae77a228c7 Rename big_write.block to location 2019-11-12 20:58:27 +03:00
Vitaliy Filippov 46e96c5128 Remove duplicate journal buffer submission code 2019-11-11 18:38:57 +03:00
Vitaliy Filippov 8edb9e9d6f Remove duplicate journal writing code (and fix it at the same time) 2019-11-11 00:28:14 +03:00
Vitaliy Filippov 5330461029 Move blockstore journal fields to journal_t, implement multiple write buffers for journal sectors 2019-11-07 23:42:24 +03:00
Vitaliy Filippov c959948c82 Finish journal reader 2019-11-04 20:18:52 +03:00
Vitaliy Filippov e1c92d2227 Begin journal init reader 2019-11-04 01:42:53 +03:00
Vitaliy Filippov f4705d81d7 Split into multiple files, begin init_loop, adjust read 2019-11-03 02:30:11 +03:00