Ensembia/nextcloud-ng_backup
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Read files for a backup in pieces of 4 MiB instead of 8 KiB

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PHP reads a file 8 KiB at a time by default. On a disk where every
request waits, such as a network or cloud volume, that made reading five
times slower: on the test server 5 MiB/s instead of 27 MiB/s. Without
PHP's read buffer every read of a blob is one request to the disk. The
same for packs on a local location.
This commit is contained in:
Dillard Blom
2026-11-07 12:44:57 +01:00
parent 569077fa69
commit 953312bf44
5 changed files with 28 additions and 3 deletions
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CHANGELOG.md
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@@ -40,6 +40,9 @@ shown under 1.0.0. The git tag of a release candidate goes after the date.
- The key page warns against creating a new key when you are restoring a server.
### Changed
- Reading files for a backup is much faster on disks where every request waits, such as network and
cloud volumes: files are read in pieces of 4 MiB instead of 8 KiB. On a test server the disk
delivered 27 MiB/s instead of 5 MiB/s.
- Locations are backed up one after the other: a backup that has to wait shows as queued. A restore
point has the time its backup really began, not the time it was queued.
- Choosing a time no longer starts a backup right away when that time has already passed today.