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| author | Ivan Frade <ifrade@google.com> | 2022-01-04 11:10:04 -0800 |
|---|---|---|
| committer | Ivan Frade <ifrade@google.com> | 2023-02-16 10:25:44 -0800 |
| commit | 596c445af22ed9b6e0b7e35de44c127fcb8ecf7d (patch) | |
| tree | bc5659615b6646dbdb469a8a4e3c97be9ec19e29 /Documentation | |
| parent | c9552abaf3286f5b277d64f78c46020fe3978aa3 (diff) | |
| download | jgit-596c445af22ed9b6e0b7e35de44c127fcb8ecf7d.tar.gz jgit-596c445af22ed9b6e0b7e35de44c127fcb8ecf7d.zip | |
PackConfig: add entry for minimum size to index
The object size index can have up to #(blobs-in-repo) entries, taking
a relevant amount of memory. Let operators configure the threshold size
to include objects in the size index.
The index will include objects with size *at or above* this
value (with -1 for none). This is more effective for the
filter-by-size case.
Lowering the threshold adds more objects to the index. This improves
performance at the cost of memory/storage space. For the object-size
case, more calls will use the index instead of reading IO. For the
filter-by-size case, lower threshold means better granularity (if
ObjectReader#isSmallerThan is implemented based only on the index).
Change-Id: I6ccd9334adbbc2abf95fde51dbbfc85b8230ade0
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/config-options.md | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/config-options.md b/Documentation/config-options.md index 612b8456ae..754accf787 100644 --- a/Documentation/config-options.md +++ b/Documentation/config-options.md @@ -99,6 +99,7 @@ Proxy configuration uses the standard Java mechanisms via class `java.net.ProxyS | `pack.deltaCompression` | `true` | ⃞ | Whether the writer will create new deltas on the fly. `true` if the pack writer will create a new delta when either `pack.reuseDeltas` is false, or no suitable delta is available for reuse. | | `pack.depth` | `50` | ✅ | Maximum depth of delta chain set up for the pack writer. | | `pack.indexVersion` | `2` | ✅ | Pack index file format version. | +| `pack.minBytesForObjSizeIndex` | `-1` | ⃞ | Minimum size of an object (inclusive, in bytes) to be included in the size index. -1 to disable the object size index. | | `pack.minSizePreventRacyPack` | `100 MiB` | ⃞ | Minimum packfile size for which we wait before opening a newly written pack to prevent its lastModified timestamp could be racy if `pack.waitPreventRacyPack` is `true`. | | `pack.preserveOldPacks` | `false` | ⃞ | Whether to preserve old packs in a preserved directory. | | `prunePreserved`, only via API of PackConfig | `false` | ⃞ | Whether to remove preserved pack files in a preserved directory. | |