https://github.com/facebook/rocksdb
This change impacts only non-buffered I/O on Windows. Currently, there is a buffer per RandomAccessFile instance that is protected by a lock. The reason we maintain the buffer is non-buffered I/O requires an aligned buffer to work. XPerf traces demonstrate that we accumulate a considerable wait time while waiting for that lock. This change enables to set random access buffer size to zero which would indicate a per request allocation. We are expecting that allocation expense would be much less than I/O costs plus wait time due to the fact that the memory heap would tend to re-use page aligned allocations especially with the use of Jemalloc. This change does not affect buffer use as a read_ahead_buffer for compaction purposes.
- HEAD
- refs/heads/2.2.fb.branch
- refs/heads/2.3.fb.branch
- refs/heads/2.4.fb.branch
- refs/heads/2.5.fb.branch
- refs/heads/2.6.fb.branch
- refs/heads/2.7
- refs/heads/2.7.fb.branch
- refs/heads/2.8.1.fb
- refs/heads/2.8.fb
- refs/heads/2.8.fb.trunk
- refs/heads/3.0.fb
- refs/heads/3.0.fb.branch
- refs/heads/3.1.fb
- refs/heads/3.10.fb
- refs/heads/3.11.fb
- refs/heads/3.12.fb
- refs/heads/3.13.fb
- refs/heads/3.2.fb
- refs/heads/3.3.fb
- refs/heads/3.4.fb
- refs/heads/3.5.fb
- refs/heads/3.6.fb
- refs/heads/3.7.fb
- refs/heads/3.8.fb
- refs/heads/3.9.fb
- refs/heads/4.0.fb
- refs/heads/4.1.fb
- refs/heads/4.10.fb
- refs/heads/4.11.fb
- refs/heads/4.12.fb
- refs/heads/4.13.fb
- refs/heads/4.2.fb
- refs/heads/4.3.fb
- refs/heads/4.4.fb
- refs/heads/4.5.fb
- refs/heads/4.6.fb
- refs/heads/4.7.fb
- refs/heads/4.8.fb
- refs/heads/4.9.fb
- refs/heads/5.0.fb
- refs/heads/5.1.fb
- refs/heads/5.10.fb
- refs/heads/5.11.fb
- refs/heads/5.12.fb
- refs/heads/5.13.fb
- refs/heads/5.13.fb.myrocks
- refs/heads/5.14.fb
- refs/heads/5.14.fb.myrocks
- refs/heads/5.15.fb
- refs/heads/5.16.fb
- refs/heads/5.17.fb
- refs/heads/5.17.fb.myrocks
- refs/heads/5.18.fb
- refs/heads/5.2.fb
- refs/heads/5.3.fb
- refs/heads/5.4.fb
- refs/heads/5.5.fb
- refs/heads/5.6.fb
- refs/heads/5.7.fb
- refs/heads/5.7.fb.myrocks
- refs/heads/5.8.3
- refs/heads/5.8.fb
- refs/heads/5.9.fb
- refs/heads/5.9.fb.myrocks
- refs/heads/6.0.fb
- refs/heads/6.0.fb.myrocks
- refs/heads/6.1.fb
- refs/heads/6.1.fb.myrocks
- refs/heads/6.1.fb.prod201905
- refs/heads/6.10.fb
- refs/heads/6.11.fb
- refs/heads/6.12.fb
- refs/heads/6.13.fb
- refs/heads/6.13.fb.laser
- refs/heads/6.14.fb
- refs/heads/6.14.fb.laser
- refs/heads/6.15.fb
- refs/heads/6.16.fb
- refs/heads/6.17.fb
- refs/heads/6.17.fb.laser
- refs/heads/6.18.fb
- refs/heads/6.19.fb
- refs/heads/6.2.fb
- refs/heads/6.20.fb
- refs/heads/6.21.fb
- refs/heads/6.22-history.md-fixup
- refs/heads/6.22.fb
- refs/heads/6.23.fb
- refs/heads/6.24.fb
- refs/heads/6.25.fb
- refs/heads/6.26.fb
- refs/heads/6.27.fb
- refs/heads/6.28.fb
- refs/heads/6.29.fb
- refs/heads/6.3.fb
- refs/heads/6.3.fb.myrocks
- refs/heads/6.3.fb.myrocks2
- refs/heads/6.3fb
- refs/heads/6.4.fb
- refs/heads/6.5.fb
- refs/heads/6.6.fb
- refs/heads/6.7.fb
- refs/heads/6.8.fb
- refs/heads/6.9.fb
- refs/heads/7.0.fb
- refs/heads/7.1.fb
- refs/heads/7.10.fb
- refs/heads/7.2.fb
- refs/heads/7.3.fb
- refs/heads/7.4.fb
- refs/heads/7.5.fb
- refs/heads/7.6.fb
- refs/heads/7.7.fb
- refs/heads/7.8.fb
- refs/heads/7.9.fb
- refs/heads/8.0.fb
- refs/heads/8.1.fb
- refs/heads/8.10.fb
- refs/heads/8.11.2_zippydb
- refs/heads/8.11.fb
- refs/heads/8.11.fb_zippydb
- refs/heads/8.2.fb
- refs/heads/8.3.fb
- refs/heads/8.4.fb
- refs/heads/8.5.fb
- refs/heads/8.6.fb
- refs/heads/8.7.fb
- refs/heads/8.8.fb
- refs/heads/8.9.fb
- refs/heads/9.0.fb
- refs/heads/9.1.fb
- refs/heads/adaptive
- refs/heads/ajkr-patch-1
- refs/heads/ajkr-patch-2
- refs/heads/blob_shadow
- refs/heads/bottom-pri-level
- refs/heads/bugfix-build-detect
- refs/heads/checksum_readahead_mmap_fix
- refs/heads/draft-myrocks-and-fbcode-8.0.fb
- refs/heads/feature/debug-rocksdbjavastatic
- refs/heads/feature/travis-arm64
- refs/heads/fix-release-notes
- refs/heads/fix-win2022-build
- refs/heads/fix-write-batch-comment
- refs/heads/format_compatible_4
- refs/heads/getmergeops
- refs/heads/gh-pages-old
- refs/heads/history-update
- refs/heads/hotfix/lambda-capture
- refs/heads/improve-support
- refs/heads/jijiew-patch-1
- refs/heads/katherinez-patch-1
- refs/heads/katherinez-patch-2
- refs/heads/main
- refs/heads/master
- refs/heads/mdcallag_benchmark_oct22
- refs/heads/nvm_cache_proto
- refs/heads/pr-sanity-check-as-GHAction
- refs/heads/pr/11267
- refs/heads/pr/6062
- refs/heads/ramvadiv-patch-1
- refs/heads/release_fix
- refs/heads/revert-10606-7.6.1
- refs/heads/ribbon_bloom_hybrid
- refs/heads/scaffold
- refs/heads/siying-patch-1
- refs/heads/siying-patch-10
- refs/heads/siying-patch-2
- refs/heads/siying-patch-3
- refs/heads/siying-patch-4
- refs/heads/siying-patch-5
- refs/heads/siying-patch-6
- refs/heads/siying-patch-7
- refs/heads/siying-patch-8
- refs/heads/skip_memtable_flush
- refs/heads/testing_ppc_build
- refs/heads/tests
- refs/heads/unschedule_issue_test_base
- refs/heads/unused-var
- refs/heads/v6.6.4
- refs/heads/xxhash_merge_base
- refs/heads/yiwu_stackable
- refs/heads/yuslepukhin
- refs/remotes/origin/5.13.fb
- refs/tags/2.5.fb
- refs/tags/2.6.fb
- refs/tags/3.0.fb
- refs/tags/do-not-use-me2
- refs/tags/rocksdb-3.1
- refs/tags/rocksdb-3.10.2
- refs/tags/rocksdb-3.11
- refs/tags/rocksdb-3.11.1
- refs/tags/rocksdb-3.11.2
- refs/tags/rocksdb-3.2
- refs/tags/rocksdb-3.3
- refs/tags/rocksdb-3.4
- refs/tags/rocksdb-3.5
- refs/tags/rocksdb-3.5.1
- refs/tags/rocksdb-3.6.1
- refs/tags/rocksdb-3.6.2
- refs/tags/rocksdb-3.7
- refs/tags/rocksdb-3.8
- refs/tags/rocksdb-3.9
- refs/tags/rocksdb-3.9.1
- refs/tags/rocksdb-4.1
- refs/tags/rocksdb-5.10.2
- refs/tags/rocksdb-5.10.3
- refs/tags/rocksdb-5.10.4
- refs/tags/rocksdb-5.11.2
- refs/tags/rocksdb-5.11.3
- refs/tags/rocksdb-5.14.3
- refs/tags/rocksdb-5.2.1
- refs/tags/rocksdb-5.3.3
- refs/tags/rocksdb-5.3.4
- refs/tags/rocksdb-5.3.5
- refs/tags/rocksdb-5.3.6
- refs/tags/rocksdb-5.4.10
- refs/tags/rocksdb-5.4.5
- refs/tags/rocksdb-5.4.6
- refs/tags/rocksdb-5.5.2
- refs/tags/rocksdb-5.5.3
- refs/tags/rocksdb-5.5.4
- refs/tags/rocksdb-5.5.5
- refs/tags/rocksdb-5.5.6
- refs/tags/rocksdb-5.6.1
- refs/tags/rocksdb-5.6.2
- refs/tags/rocksdb-5.7.1
- refs/tags/rocksdb-5.7.2
- refs/tags/rocksdb-5.7.3
- refs/tags/rocksdb-5.7.5
- refs/tags/rocksdb-5.8.6
- refs/tags/rocksdb-5.8.7
- refs/tags/rocksdb-5.8.8
- refs/tags/rocksdb-5.9.2
- refs/tags/v4.0
- refs/tags/v4.1
- refs/tags/v5.10.2
- refs/tags/v5.10.3
- refs/tags/v5.10.4
- refs/tags/v5.11.2
- refs/tags/v5.11.3
- refs/tags/v5.13.3
- refs/tags/v5.14.3
- refs/tags/v5.15.10
- refs/tags/v5.18.3
- refs/tags/v5.2.1
- refs/tags/v5.3.3
- refs/tags/v5.3.4
- refs/tags/v5.3.5
- refs/tags/v5.3.6
- refs/tags/v5.4.10
- refs/tags/v5.4.5
- refs/tags/v5.4.6
- refs/tags/v5.5.2
- refs/tags/v5.5.3
- refs/tags/v5.5.4
- refs/tags/v5.5.5
- refs/tags/v5.5.6
- refs/tags/v5.6.1
- refs/tags/v5.6.2
- refs/tags/v5.7.1
- refs/tags/v5.7.2
- refs/tags/v5.7.3
- refs/tags/v5.7.5
- refs/tags/v5.8.6
- refs/tags/v5.8.7
- refs/tags/v5.8.8
- refs/tags/v5.9.2
- refs/tags/v6.0.1
- refs/tags/v6.0.2
- refs/tags/v6.1.1
- refs/tags/v6.1.2
- refs/tags/v6.10.1
- refs/tags/v6.10.2
- refs/tags/v6.11.4
- refs/tags/v6.11.6
- refs/tags/v6.12.6
- refs/tags/v6.12.7
- refs/tags/v6.13.2
- refs/tags/v6.13.3
- refs/tags/v6.14.5
- refs/tags/v6.14.6
- refs/tags/v6.15.4
- refs/tags/v6.15.5
- refs/tags/v6.16.3
- refs/tags/v6.16.4
- refs/tags/v6.17.3
- refs/tags/v6.2.2
- refs/tags/v6.2.4
- refs/tags/v6.20.3
- refs/tags/v6.22.1
- refs/tags/v6.25.3
- refs/tags/v6.26.1
- refs/tags/v6.28.2
- refs/tags/v6.29.3
- refs/tags/v6.29.4
- refs/tags/v6.29.5
- refs/tags/v6.3.6
- refs/tags/v6.4.6
- refs/tags/v6.5.2
- refs/tags/v6.5.3
- refs/tags/v6.6.3
- refs/tags/v6.6.4
- refs/tags/v6.7.3
- refs/tags/v6.8.1
- refs/tags/v7.0.1
- refs/tags/v7.0.2
- refs/tags/v7.0.4
- refs/tags/v7.2.0
- refs/tags/v7.2.2
- refs/tags/v7.5.3
- refs/tags/v7.7.2
- refs/tags/v7.9.2
- refs/tags/v8.0.0
- refs/tags/v8.11.4
- refs/tags/v8.3.2
- refs/tags/v8.3.3
- refs/tags/v8.4.4
- refs/tags/v8.5.3
- refs/tags/v8.6.7
- refs/tags/v8.7.3
- 36300fbbe3a7fde402152e4a57bbf5cda614d53c
- v9.0.0
- v8.9.1
- v8.8.1
- v8.5.4
- v8.11.3
- v8.10.2
- v8.10.0
- v8.1.1
- v7.8.3
- v7.7.8
- v7.7.3
- v7.6.0
- v7.4.5
- v7.4.4
- v7.4.3
- v7.3.1
- v7.10.2
- v7.1.2
- v7.1.1
- v7.0.3
- v6.27.3
- v6.26.0
- v6.25.1
- v6.24.2
- v6.23.3
- v6.23.2
- v6.19.3
- v6.15.2
- v5.8
- v5.5.1
- v5.4.7
- v5.18.4
- v5.17.2
- v5.16.6
- v5.14.2
- v5.13.4
- v5.13.2
- v5.13.1
- v5.12.5
- v5.12.4
- v5.12.3
- v5.12.2
- v5.1.4
- v5.1.3
- v5.1.2
- v5.0.2
- v5.0.1
- v4.9
- v4.8
- v4.6.1
- v4.5.1
- v4.4.1
- v4.4
- v4.3.1
- v4.3
- v4.2
- v4.13.5
- v4.13
- v4.11.2
- v3.9
- v3.8
- v3.7
- v3.6.1
- v3.5
- v3.4
- v3.3
- v3.2
- v3.13.1
- v3.13
- v3.12.1
- v3.12
- v3.11
- v3.10
- v3.1
- v3.0
- v2.8
- v2.7
- v2.6
- v2.5
- v2.4
- v2.3
- v2.2
- v2.1
- v2.0
- v1.5.9.1
- v1.5.8.2
- v1.5.8.1
- v1.5.8
- v1.5.7
- rocksdb-5.8
- rocksdb-5.4.7
- rocksdb-5.1.4
- rocksdb-5.1.3
- rocksdb-5.1.2
- rocksdb-5.0.2
- rocksdb-5.0.1
- rocksdb-4.9
- rocksdb-4.8
- rocksdb-4.6.1
- rocksdb-4.5.1
- rocksdb-4.4.1
- rocksdb-4.4
- rocksdb-4.3.1
- rocksdb-4.3
- rocksdb-4.2
- rocksdb-4.13.5
- rocksdb-4.13
- rocksdb-4.11.2
- rocksdb-3.10.1
- blob_st_lvl-pre
- 2.8.fb
- 2.7.fb
- 2.4.fb
- 2.3.fb
- 2.2.fb
- 2.1.fb
- 2.0.fb
- 1.5.9.fb
- 1.5.9.2.fb
- 1.5.9.1.fb
- 1.5.8.fb
- 1.5.8.2.fb
- 1.5.8.1.fb
- 1.5.7.fb
Cook and download a directory from the Software Heritage Vault
You have requested the cooking of the directory with identifier swh:1:dir:8fcd91a7ed83df827e326613e6d16b76747de52d into a standard tar.gz archive
.
Are you sure you want to continue ?
Download a directory from the Software Heritage Vault
You have requested the download of the directory with identifier swh:1:dir:8fcd91a7ed83df827e326613e6d16b76747de52d as a standard tar.gz archive
.
Are you sure you want to continue ?
Cook and download a revision from the Software Heritage Vault
You have requested the cooking of the history heading to revision with identifier swh:1:rev:36300fbbe3a7fde402152e4a57bbf5cda614d53c into a bare git archive
.
Are you sure you want to continue ?
Download a revision from the Software Heritage Vault
You have requested the download of the history heading to revision with identifier swh:1:rev:36300fbbe3a7fde402152e4a57bbf5cda614d53c as a bare git archive
.
Are you sure you want to continue ?
Invalid Email !
The provided email is not well-formed.
Download link has expired
The requested archive is no longer available for download from the Software Heritage Vault.
Do you want to cook it again ?
Take a new snapshot of a software origin
If the archived software origin currently browsed is not synchronized with its upstream version (for instance when new commits have been issued), you can explicitly request Software Heritage to take a new snapshot of it.
Use the form below to proceed. Once a request has been submitted and accepted, it will be processed as soon as possible. You can then check its processing state by visiting this dedicated page.Processing "take a new snapshot" request ...
To reference or cite the objects present in the Software Heritage archive, permalinks based on SoftWare Hash IDentifiers (SWHIDs) must be used.
Select below a type of object currently browsed in order to display its associated SWHID and permalink.
Enable per-request buffer allocation in RandomAccessFile
File | Mode | Size |
---|---|---|
backupable | ||
checkpoint | ||
compaction_filters | ||
convenience | ||
document | ||
flashcache | ||
geodb | ||
leveldb_options | ||
memory | ||
merge_operators | ||
options | ||
redis | ||
spatialdb | ||
table_properties_collectors | ||
transactions | ||
ttl | ||
write_batch_with_index | ||
env_mirror.cc | -rw-r--r-- | 7.8 KB |
env_mirror_test.cc | -rw-r--r-- | 7.0 KB |
merge_operators.h | -rw-r--r-- | 1.4 KB |
Computing file changes ...