Commit Graph

176 Commits

Author SHA1 Message Date
greatroar 8d2996eaaa Replace siphash by hash/maphash
In Go 1.17.1, maphash has become quite a bit faster than siphash, so we
can drop one third-party dependency. maphash is just an interface to the
standard Go map's hash function, which we already trust for other use
cases.

Benchmark results on linux/amd64, -benchtime=3s:

name                                             old time/op    new time/op    delta
IndexHasUnknown-8                                  50.6ns ±10%    41.0ns ±19%  -18.92%  (p=0.000 n=9+10)
IndexHasKnown-8                                    52.6ns ±12%    41.5ns ±12%  -21.13%  (p=0.000 n=9+10)
IndexMapHash-8                                     3.64µs ± 1%    2.00µs ± 0%  -45.09%  (p=0.000 n=10+9)
IndexAlloc-8                                        700ms ± 1%     601ms ± 6%  -14.18%  (p=0.000 n=8+10)
IndexAllocParallel-8                                205ms ± 5%     192ms ± 8%   -6.18%  (p=0.043 n=10+10)
MasterIndexAlloc-8                                  319ms ± 1%     279ms ± 5%  -12.58%  (p=0.000 n=10+10)
MasterIndexLookupSingleIndex-8                      156ns ± 8%     147ns ± 6%   -5.46%  (p=0.023 n=10+10)
MasterIndexLookupMultipleIndex-8                    150ns ± 7%     142ns ± 8%   -5.69%  (p=0.007 n=10+10)
MasterIndexLookupSingleIndexUnknown-8              74.4ns ± 6%    72.0ns ± 9%     ~     (p=0.175 n=10+9)
MasterIndexLookupMultipleIndexUnknown-8            67.4ns ± 9%    65.5ns ± 7%     ~     (p=0.340 n=9+9)
MasterIndexLookupParallel/known,indices=25-8        461ns ± 2%     445ns ± 2%   -3.49%  (p=0.000 n=10+10)
MasterIndexLookupParallel/unknown,indices=25-8      408ns ±11%     378ns ± 5%   -7.22%  (p=0.035 n=10+9)
MasterIndexLookupParallel/known,indices=50-8        479ns ± 1%     437ns ± 4%   -8.82%  (p=0.000 n=10+10)
MasterIndexLookupParallel/unknown,indices=50-8      406ns ± 8%     343ns ±15%  -15.44%  (p=0.001 n=10+10)
MasterIndexLookupParallel/known,indices=100-8       480ns ± 1%     455ns ± 5%   -5.15%  (p=0.000 n=8+10)
MasterIndexLookupParallel/unknown,indices=100-8     391ns ±18%     382ns ± 8%     ~     (p=0.315 n=10+10)
MasterIndexLookupBlobSize-8                        71.0ns ± 8%    57.2ns ±11%  -19.36%  (p=0.000 n=9+10)
PackerManager-8                                     254ms ± 1%     254ms ± 1%     ~     (p=0.285 n=15+15)

name                                             old speed      new speed      delta
IndexMapHash-8                                   1.12GB/s ± 1%  2.05GB/s ± 0%  +82.13%  (p=0.000 n=10+9)
PackerManager-8                                   208MB/s ± 1%   207MB/s ± 1%     ~     (p=0.281 n=15+15)

name                                             old alloc/op   new alloc/op   delta
IndexMapHash-8                                      0.00B          0.00B          ~     (all equal)
IndexAlloc-8                                        400MB ± 0%     400MB ± 0%     ~     (p=1.000 n=9+10)
IndexAllocParallel-8                                401MB ± 0%     401MB ± 0%   +0.00%  (p=0.000 n=10+10)
MasterIndexAlloc-8                                  258MB ± 0%     262MB ± 0%   +1.42%  (p=0.000 n=9+10)
PackerManager-8                                    73.1kB ± 0%    73.1kB ± 0%     ~     (p=0.382 n=13+13)

name                                             old allocs/op  new allocs/op  delta
IndexMapHash-8                                       0.00           0.00          ~     (all equal)
IndexAlloc-8                                         907k ± 0%      907k ± 0%   -0.00%  (p=0.000 n=10+10)
IndexAllocParallel-8                                 907k ± 0%      907k ± 0%   +0.00%  (p=0.009 n=10+10)
MasterIndexAlloc-8                                   327k ± 0%      317k ± 0%   -3.06%  (p=0.000 n=10+10)
PackerManager-8                                       744 ± 0%       744 ± 0%     ~     (all equal)
2021-09-19 16:05:18 +02:00
Alexander Weiss 81876d5c1b Simplify cache logic 2021-09-03 21:01:00 +02:00
Michael Eischer 9aa2eff384 Add plumbing to calculate backend specific file hash for upload
This enables the backends to request the calculation of a
backend-specific hash. For the currently supported backends this will
always be MD5. The hash calculation happens as early as possible, for
pack files this is during assembly of the pack file. That way the hash
would even capture corruptions of the temporary pack file on disk.
2021-08-04 22:17:46 +02:00
Ryan Hitchman 77bf148460 backup: add --dry-run/-n flag to show what would happen.
This can be used to check how large a backup is or validate exclusions.
It does not actually write any data to the underlying backend. This is
implemented as a simple overlay backend that accepts writes without
forwarding them, passes through reads, and generally does the minimal
necessary to pretend that progress is actually happening.

Fixes #1542

Example usage:

$ restic -vv --dry-run . | grep add
new       /changelog/unreleased/issue-1542, saved in 0.000s (350 B added)
modified  /cmd/restic/cmd_backup.go, saved in 0.000s (16.543 KiB added)
modified  /cmd/restic/global.go, saved in 0.000s (0 B added)
new       /internal/backend/dry/dry_backend_test.go, saved in 0.000s (3.866 KiB added)
new       /internal/backend/dry/dry_backend.go, saved in 0.000s (3.744 KiB added)
modified  /internal/backend/test/tests.go, saved in 0.000s (0 B added)
modified  /internal/repository/repository.go, saved in 0.000s (20.707 KiB added)
modified  /internal/ui/backup.go, saved in 0.000s (9.110 KiB added)
modified  /internal/ui/jsonstatus/status.go, saved in 0.001s (11.055 KiB added)
modified  /restic, saved in 0.131s (25.542 MiB added)
Would add to the repo: 25.892 MiB
2021-08-04 21:19:29 +02:00
Alexander Neumann aef3658a5f Address review comments 2021-01-30 20:02:37 +01:00
Alexander Neumann 16313bfcc9 errcheck: Add error check for MergeFinalIndexes() 2021-01-30 20:02:37 +01:00
Alexander Neumann 75f53955ee errcheck: Add error checks
Most added checks are straight forward.
2021-01-30 20:02:37 +01:00
Alexander Neumann bdfedf1f5b
Merge pull request #3173 from MichaelEischer/unify-index-loading
Unify index loading
2021-01-28 13:50:42 +01:00
Michael Eischer e2b0072441 check: add progress bar to the tree structure check 2021-01-28 11:10:50 +01:00
Michael Eischer de99207046 repository: tweak comment for packs method 2020-12-22 23:01:58 +01:00
Alexander Weiss 68b74e359e Count packs directly in RebuildIndexFiles 2020-12-22 23:01:58 +01:00
Michael Eischer b9f5d3fe13 repository: Add test for ForAllIndexes 2020-12-22 22:36:18 +01:00
Michael Eischer a12c5f1d37 repository: move otherwise unused LoadIndex to tests 2020-12-22 22:36:18 +01:00
Michael Eischer 24474a36f4 repository: deduplicate index loading implementation 2020-12-22 22:36:18 +01:00
Michael Eischer 96904f8972 check: extract parallel index loading 2020-12-22 22:36:18 +01:00
Alexander Neumann 36c5d39c2c Fix issues reported by semgrep 2020-12-11 09:41:59 +01:00
Alexander Neumann 7facc8ccc1
Merge pull request #2505 from aawsome/fix-repo-configfile
Fix repo configfile
2020-12-07 07:52:37 +01:00
Alexander Weiss aa7a5f19c2 Use BlobHandle in index methods 2020-11-22 20:41:12 +01:00
Alexander Weiss e3013271a6 Harmonize naming 2020-11-22 20:41:12 +01:00
Alexander Weiss 92bd448691 Make BlobHandle substruct of Blob 2020-11-22 20:41:10 +01:00
Alexander Weiss ce5d630681 Add MasterIndex.PackSize() 2020-11-21 22:13:54 +01:00
Alexander Weiss c3ddde9e7d Return hdrSize in ListPack 2020-11-21 22:13:54 +01:00
Michael Eischer 1f43cac12d check: Only track data blobs when unused blobs should be reported
This improves the memory usage of check a lot as it now only has to
track tree blobs when run using the default parameters.
2020-11-15 18:43:07 +01:00
Alexander Neumann 3c0c0c132b
Merge pull request #3006 from aawsome/new-rebuild-index
Reimplement rebuild-index and remove /internal/index
2020-11-15 17:48:43 +01:00
greatroar ab2b7d7f9a Decrease allocation rate in internal/pack
internal/repository benchmark results:

name             old time/op    new time/op    delta
PackerManager-8     179ms ± 1%     181ms ± 1%   +0.78%  (p=0.009 n=10+10)

name             old speed      new speed      delta
PackerManager-8   294MB/s ± 1%   292MB/s ± 1%   -0.77%  (p=0.009 n=10+10)

name             old alloc/op   new alloc/op   delta
PackerManager-8    91.3kB ± 0%    72.2kB ± 0%  -20.92%  (p=0.000 n=9+7)

name             old allocs/op  new allocs/op  delta
PackerManager-8     1.38k ± 0%     0.76k ± 0%  -45.20%  (p=0.000 n=10+7)
2020-11-15 16:51:47 +01:00
Alexander Weiss 30b6a0878a Reimplement rebuild-index 2020-11-15 07:05:09 +01:00
Alexander Weiss 187c8fb259 Parallelize MasterIndex.Save() 2020-11-15 07:05:09 +01:00
Alexander Weiss 1ec628ddf5 Add extraObsolete to MasterIndex.Save 2020-11-15 07:05:09 +01:00
Alexander Weiss 5898cb341f Use CreateIndexFromPacks() in test 2020-11-15 07:05:05 +01:00
Alexander Weiss 43732bb885 Add CreateIndexFromPacks() 2020-11-15 07:04:51 +01:00
greatroar 21b787a4d1 Stop Counters where they're constructed and started 2020-11-09 13:03:31 +01:00
greatroar ddca699cd2 Replace restic.Progress with new progress.Counter
This fixes two race conditions while cleaning up the code.
2020-11-09 12:12:35 +01:00
Alexander Weiss fd33030556 Use in-memory index to rebuild index in prune 2020-11-06 20:23:30 +01:00
Alexander Weiss 38cc4393f6 Add Masterindex.Save(); Add Index.Packs() 2020-11-06 20:23:30 +01:00
Alexander Weiss aaf1c44362 Fix #3062 2020-11-05 17:05:42 +01:00
Alexander Neumann ae5302c7a8 Add comment that keepBlobs is modified 2020-11-05 10:33:38 +01:00
Alexander Neumann 866a52ad4e Remove unneeded seek
The file returned from DownloadAndHash() is already seeked to the start
of the file.
2020-11-05 10:31:49 +01:00
Alexander Neumann a4507610a0 Fix typo 2020-11-05 10:31:49 +01:00
Alexander Neumann 7def2d8ea7 Use a non-constant seed 2020-11-05 10:31:49 +01:00
Alexander Neumann ee0112ab3b Clarify message about expected error 2020-11-05 10:31:49 +01:00
Michael Eischer b373f164fe prune: Parallelize repack command 2020-11-05 10:31:49 +01:00
Alexander Neumann 3ff37215df
Merge pull request #2935 from MichaelEischer/upgrade-minio
Upgrade minio SDK to version 7
2020-11-02 09:09:10 +01:00
Sergio Rubio e708628cfd
Remove unused function
Not currently used, and it'd need to be added to the MasterIndex interface first.
2020-10-28 13:24:49 +01:00
Alexander Weiss b44ecde8b0 Fix setting of ID in DecodeIndex 2020-10-17 09:12:58 +02:00
MichaelEischer 4ba237bb93
Merge pull request #3019 from greatroar/refactor-decodeindex
Refactor index decoding
2020-10-15 23:22:33 +02:00
greatroar b27375f5ce defer close(ch) outside repository.RunWorkers 2020-10-14 15:50:16 +02:00
greatroar 720e0ee0c7 if cond { return true }; return false => return cond 2020-10-13 20:56:43 +02:00
greatroar 27db3ec262 Refactor index decoding
Decoding old-format indices no longer requires loading and decrypting
twice.
2020-10-13 20:47:50 +02:00
Alexander Neumann 56883817d8
Merge pull request #2990 from MichaelEischer/fix-goreport-warnings
Fix some goreport warnings
2020-10-12 20:44:56 +02:00
Michael Eischer e638b46a13 Embed context into ReaderAt
The io.Reader interface does not support contexts, such that it is
necessary to embed the context into the backendReaderAt struct. This has
the problem that a reader might suddenly stop working when it's
contained context is canceled. However, this is now problem here as the
reader instances never escape the calling function.
2020-10-09 22:39:07 +02:00