309598c237
Simplify sortCachedPacksFirst test in internal/repository
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The test now uses the fact that the sort is stable. It's not guaranteed
to be, but the test is cleaner and more exhaustive. sortCachedPacksFirst
no longer needs a return value.
2020-07-25 12:12:59 +02:00
03d23e6faa
Speed up blob sorting in internal/repository
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name old time/op new time/op delta
SortCachedPacksFirst-8 208µs ± 3% 186µs ± 3% -10.74% (p=0.000 n=10+8)
name old alloc/op new alloc/op delta
SortCachedPacksFirst-8 213kB ± 0% 139kB ± 0% -34.62% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
SortCachedPacksFirst-8 1.03k ± 0% 1.03k ± 0% -0.19% (p=0.000 n=10+10)
2020-07-25 12:12:59 +02:00
b10acd2af7
Test and benchmark blob sorting in internal/repository
2020-07-25 12:12:58 +02:00
9175795fdb
Check contents in archiver
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When backing up with a parent snapshot and the file is not changed, also
check if contents are still available in index.
2020-07-25 08:18:28 +02:00
5d8d70542f
Merge pull request #2852 from MichaelEischer/drop-go-1.11
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Drop support for Go version 1.11
2020-07-25 01:17:36 +02:00
7c23381a2b
Drop support for Go version 1.11
2020-07-24 18:52:39 +02:00
34181b13a2
Merge pull request #2328 from MichaelEischer/no-repeated-checks
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Fix duplicate tree checks within `restic check`
2020-07-22 22:08:02 +02:00
bcd47ec3a2
Merge pull request #2818 from aawsome/merge-index-chaining
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Merge index (based on chaining index implementation)
2020-07-22 22:05:36 +02:00
a666a6d576
Add tests and merge indexes in index benchmarks
2020-07-22 21:54:02 +02:00
e388d962a5
Merge final indexes together for faster index access
2020-07-22 21:54:02 +02:00
3b7a3711e6
Add more realistic index benchmarks
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+ reduce test size of BenchmarkMasterIndexLookupParallel
2020-07-21 07:18:20 +02:00
9b0e718852
checker: Test that blob types are not confused
2020-07-20 23:43:47 +02:00
82c908871d
Merge pull request #2812 from greatroar/chaining
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Chaining hash table for repository.Index
2020-07-20 23:29:36 +02:00
ddf0b8cd0b
checker: Properly distinguish between data and tree blobs
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If a data blob and a tree blob with the same ID (= same content) exist,
then the checker did not report a data or tree blob as unused when the
blob of the other type was still in use.
2020-07-20 22:58:39 +02:00
2d0c138c9b
checker: Test that check only decodes trees once
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The `DuplicateTree` flag is necessary to ensure that failures cannot be
swallowed. The old checker implementation ignores errors from LoadTree
if the corresponding tree was already checked.
2020-07-20 22:51:53 +02:00
ef325ffc02
checker: Cleanup error handling code
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This change only moves code around but does not result in any change in
behavior.
2020-07-20 22:51:53 +02:00
0f67ae813a
Add changelog
2020-07-20 22:51:53 +02:00
7a165f32a9
checker: Traverse trees in depth-first order
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Backups traverse the file tree in depth-first order and saves trees on
the way back up. This results in tree packs filled in a way comparable
to the reverse Polish notation. In order to check tree blobs in that
order, the treeFilter would have to delay the forwarding of tree nodes
until all children of it are processed which would complicate the
implementation.
Therefore do the next similar thing and traverse the tree in depth-first
order, but process trees already on the way down. The tree blob ids are
added in reverse order to the backlog, which is once again reverted when
removing the ids from the back of the backlog.
2020-07-20 22:51:53 +02:00
36c69e3ca7
checker: Unify blobs, processed trees and referenced blobs map
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The blobRefs map and the processedTrees IDSet are merged to reduce the
memory usage. The blobRefs map now uses separate flags to track blob
usage as data or tree blob. This prevents skipping of trees whose
content is identical to an already processed data blob. A third flag
tracks whether a blob exists or not, which removes the need for the
blobs IDSet.
2020-07-20 22:51:47 +02:00
35d8413639
checker: Remove dead index map
2020-07-20 22:37:31 +02:00
c66a0e408c
checker: Reduce cost of debug log
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Avoid duplicate allocation of the Subtree list.
2020-07-20 22:37:31 +02:00
70f4c014ef
checker: Decode identical tree nodes only once
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Even though the checkTreeWorker skips already processed chunks,
filterTrees did queue the same tree blob on every occurence. This
becomes a serious performance bottleneck for larger number of snapshots
that cover mostly the same directories. Therefore decode a tree blob
exactly once.
2020-07-20 22:37:31 +02:00
f0d8710611
Add benchmark for checker scaling with snapshot count
2020-07-20 22:37:31 +02:00
bd3e280f6d
Merge pull request #2546 from Summerdave/fix-backup-error-code
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Return an error when errors occured during backup
2020-07-20 22:31:46 +02:00
2746dcdb5f
Merge pull request #2845 from restic/update-chunker
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Update chunker
2020-07-20 22:20:28 +02:00
5729d967f5
backup: Return exit status code 3 when failing to read source data
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The backup command used to return a zero exit code as long as a snapshot
could be created successfully, even if some of the source files could not
be read (in which case the snapshot would contain the rest of the files).
This made it hard for automation/scripts to detect failures/incomplete
backups by looking at the exit code. Restic now returns the following exit
codes for the backup command:
- 0 when the command was successful
- 1 when there was a fatal error (no snapshot created)
- 3 when some source data could not be read (incomplete snapshot created)
2020-07-20 22:19:01 +02:00
f9f6124558
Update chunker
2020-07-20 22:07:02 +02:00
8074879c5f
Remove 'go generate'
2020-07-19 17:28:42 +02:00
7bda28f31f
Chaining hash table for repository.Index
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These are faster to construct but slower to access. The allocation rate
is halved, the peak memory usage almost halved compared to standard map.
Benchmark results on linux/amd64, -benchtime=3s -count=20:
name old time/op new time/op delta
PackerManager-8 178ms ± 0% 178ms ± 0% ~ (p=0.231 n=20+20)
DecodeIndex-8 4.54s ± 0% 4.30s ± 0% -5.20% (p=0.000 n=18+17)
DecodeIndexParallel-8 4.54s ± 0% 4.30s ± 0% -5.22% (p=0.000 n=19+18)
IndexHasUnknown-8 44.4ns ± 5% 50.5ns ±11% +13.82% (p=0.000 n=19+17)
IndexHasKnown-8 48.3ns ± 0% 51.5ns ±12% +6.68% (p=0.001 n=16+20)
IndexAlloc-8 758ms ± 1% 616ms ± 1% -18.69% (p=0.000 n=19+19)
IndexAllocParallel-8 234ms ± 3% 204ms ± 2% -12.60% (p=0.000 n=20+18)
MasterIndexLookupSingleIndex-8 122ns ± 0% 145ns ± 9% +18.44% (p=0.000 n=14+20)
MasterIndexLookupMultipleIndex-8 369ns ± 2% 429ns ± 8% +16.27% (p=0.000 n=20+20)
MasterIndexLookupSingleIndexUnknown-8 68.4ns ± 5% 74.9ns ±13% +9.47% (p=0.000 n=20+20)
MasterIndexLookupMultipleIndexUnknown-8 315ns ± 3% 369ns ±11% +17.14% (p=0.000 n=20+20)
MasterIndexLookupParallel/known,indices=5-8 743ns ± 1% 816ns ± 2% +9.87% (p=0.000 n=17+17)
MasterIndexLookupParallel/unknown,indices=5-8 238ns ± 1% 260ns ± 2% +9.14% (p=0.000 n=19+20)
MasterIndexLookupParallel/known,indices=10-8 1.01µs ± 3% 1.11µs ± 2% +9.79% (p=0.000 n=19+20)
MasterIndexLookupParallel/unknown,indices=10-8 222ns ± 0% 269ns ± 2% +20.83% (p=0.000 n=16+20)
MasterIndexLookupParallel/known,indices=20-8 1.06µs ± 2% 1.19µs ± 2% +12.95% (p=0.000 n=19+18)
MasterIndexLookupParallel/unknown,indices=20-8 413ns ± 1% 530ns ± 1% +28.19% (p=0.000 n=18+20)
SaveAndEncrypt-8 30.2ms ± 1% 30.4ms ± 0% +0.71% (p=0.000 n=19+19)
LoadTree-8 540µs ± 1% 576µs ± 1% +6.73% (p=0.000 n=20+20)
LoadBlob-8 5.64ms ± 0% 5.64ms ± 0% ~ (p=0.883 n=18+17)
LoadAndDecrypt-8 5.93ms ± 0% 5.95ms ± 1% ~ (p=0.247 n=20+19)
LoadIndex-8 25.1ms ± 0% 24.5ms ± 1% -2.54% (p=0.000 n=18+17)
name old speed new speed delta
PackerManager-8 296MB/s ± 0% 296MB/s ± 0% ~ (p=0.229 n=20+20)
SaveAndEncrypt-8 139MB/s ± 1% 138MB/s ± 0% -0.71% (p=0.000 n=19+19)
LoadBlob-8 177MB/s ± 0% 177MB/s ± 0% ~ (p=0.890 n=18+17)
LoadAndDecrypt-8 169MB/s ± 0% 168MB/s ± 1% ~ (p=0.227 n=20+19)
name old alloc/op new alloc/op delta
PackerManager-8 91.8kB ± 0% 91.8kB ± 0% ~ (p=0.772 n=12+19)
IndexAlloc-8 786MB ± 0% 400MB ± 0% -49.04% (p=0.000 n=20+18)
IndexAllocParallel-8 786MB ± 0% 401MB ± 0% -49.04% (p=0.000 n=19+15)
SaveAndEncrypt-8 21.0MB ± 0% 21.0MB ± 0% +0.00% (p=0.000 n=19+19)
name old allocs/op new allocs/op delta
PackerManager-8 1.41k ± 0% 1.41k ± 0% ~ (all equal)
IndexAlloc-8 977k ± 0% 907k ± 0% -7.18% (p=0.000 n=20+20)
IndexAllocParallel-8 977k ± 0% 907k ± 0% -7.17% (p=0.000 n=19+15)
SaveAndEncrypt-8 73.0 ± 0% 73.0 ± 0% ~ (all equal)
2020-07-19 13:58:22 +02:00
255ba83c4b
Parallel index benchmarks + benchmark optimizations
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createRandomIndex was using the global RNG, which locks on every call
It was also using twice as many random numbers as necessary and doing
a float division in every iteration of the inner loop.
BenchmarkDecodeIndex was using too short an input, especially for a
parallel version. (It may now be using one that is a bit large.)
Results on linux/amd64, -benchtime=3s -count=20:
name old time/op new time/op delta
PackerManager-8 178ms ± 0% 178ms ± 0% ~ (p=0.165 n=20+20)
DecodeIndex-8 13.6µs ± 2% 4539886.8µs ± 0% +33293901.38% (p=0.000 n=20+18)
IndexHasUnknown-8 44.4ns ± 7% 44.4ns ± 5% ~ (p=0.873 n=20+19)
IndexHasKnown-8 49.2ns ± 3% 48.3ns ± 0% -1.86% (p=0.000 n=20+16)
IndexAlloc-8 802ms ± 1% 758ms ± 1% -5.51% (p=0.000 n=20+19)
MasterIndexLookupSingleIndex-8 124ns ± 1% 122ns ± 0% -1.41% (p=0.000 n=20+14)
MasterIndexLookupMultipleIndex-8 373ns ± 2% 369ns ± 2% -1.13% (p=0.001 n=20+20)
MasterIndexLookupSingleIndexUnknown-8 67.8ns ± 3% 68.4ns ± 5% ~ (p=0.753 n=20+20)
MasterIndexLookupMultipleIndexUnknown-8 316ns ± 3% 315ns ± 3% ~ (p=0.846 n=20+20)
SaveAndEncrypt-8 30.5ms ± 1% 30.2ms ± 1% -1.09% (p=0.000 n=19+19)
LoadTree-8 527µs ± 1% 540µs ± 1% +2.37% (p=0.000 n=19+20)
LoadBlob-8 5.65ms ± 0% 5.64ms ± 0% -0.21% (p=0.000 n=19+18)
LoadAndDecrypt-8 7.07ms ± 2% 5.93ms ± 0% -16.15% (p=0.000 n=19+20)
LoadIndex-8 32.1ms ± 2% 25.1ms ± 0% -21.64% (p=0.000 n=20+18)
name old speed new speed delta
PackerManager-8 296MB/s ± 0% 296MB/s ± 0% ~ (p=0.159 n=20+20)
SaveAndEncrypt-8 138MB/s ± 1% 139MB/s ± 1% +1.10% (p=0.000 n=19+19)
LoadBlob-8 177MB/s ± 0% 177MB/s ± 0% +0.21% (p=0.000 n=19+18)
LoadAndDecrypt-8 141MB/s ± 2% 169MB/s ± 0% +19.24% (p=0.000 n=19+20)
name old alloc/op new alloc/op delta
PackerManager-8 91.8kB ± 0% 91.8kB ± 0% ~ (p=0.826 n=19+12)
IndexAlloc-8 786MB ± 0% 786MB ± 0% +0.01% (p=0.000 n=20+20)
SaveAndEncrypt-8 21.0MB ± 0% 21.0MB ± 0% -0.00% (p=0.012 n=20+19)
name old allocs/op new allocs/op delta
PackerManager-8 1.41k ± 0% 1.41k ± 0% ~ (all equal)
IndexAlloc-8 977k ± 0% 977k ± 0% +0.01% (p=0.022 n=20+20)
SaveAndEncrypt-8 73.0 ± 0% 73.0 ± 0% ~ (all equal)
2020-07-19 13:58:05 +02:00
7dc200c593
Merge pull request #2832 from alrs/fix-fuse-test-err
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internal/fuse: fix dropped test error
2020-07-16 22:28:20 +02:00
9ac90cf5cd
internal/fuse: fix dropped test error
2020-07-12 21:42:31 -07:00
b84f5177cb
Merge pull request #2790 from greatroar/fix-quadratic-read
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Fix quadratic file reading in restic mount
2020-07-12 18:42:14 +02:00
4cf1c8e8da
Changelog entry for subquadratic reading in mount
2020-07-12 18:27:16 +02:00
58719e1f47
Replace mount's per-file cache by a global LRU cache
2020-07-12 18:27:16 +02:00
d42c169458
Fix quadratic file reading in restic mount
2020-07-12 18:27:16 +02:00
8598bb042b
Merge pull request #2769 from darkdragon-001/patch-1
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Update documentation for environment variables
2020-07-12 00:40:21 +02:00
c6b74962df
Update 040_backup.rst
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Changes proposed in #2763 :
- Adding `RESTIC_CACHE_DIR` environment variables (introduced in #2425 for Unix and #2607 for Mac, Win).
- Adding used system-wide environment variables with links to the corresponding section.
2020-07-12 00:31:56 +02:00
2c72924ffb
Merge pull request #2813 from greatroar/encrypt-benchmark
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Fix repository_test.BenchmarkSaveAndEncrypt
2020-07-05 17:52:10 +02:00
02bec13ef2
Fix repository_test.BenchmarkSaveAndEncrypt
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The benchmark was actually testing the speed of index lookups.
name old time/op new time/op delta
SaveAndEncrypt-8 101ns ± 2% 31505824ns ± 1% +31311591.31% (p=0.000 n=10+10)
name old speed new speed delta
SaveAndEncrypt-8 41.7TB/s ± 2% 0.0TB/s ± 1% -100.00% (p=0.000 n=10+10)
name old alloc/op new alloc/op delta
SaveAndEncrypt-8 1.00B ± 0% 20989508.40B ± 0% +2098950740.00% (p=0.000 n=10+10)
name old allocs/op new allocs/op delta
SaveAndEncrypt-8 0.00 123.00 ± 0% +Inf% (p=0.000 n=10+9)
(The actual speed is ca. 131MiB/s.)
2020-07-05 17:41:42 +02:00
64976b1a4d
Merge pull request #2815 from scelfo/patch-1
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--hostname flag is deprecated
2020-06-29 22:04:56 +02:00
6a607d6ded
--hostname flag is deprecated
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Update documentation to follow the deprecation warning "Flag --hostname has been deprecated, use --host" that is given on the latest build(s).
2020-06-29 12:53:57 -06:00
6fedf1a7f4
Merge pull request #2809 from lessfoobar/patch-2
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Update 080_examples.rst
2020-06-26 00:12:05 +02:00
df946fd9f8
Update 080_examples.rst
2020-06-26 00:01:30 +02:00
4e6a9767de
Fix examples of --verbose with argument
2020-06-23 20:22:14 +02:00
1bc80c3c8d
Merge pull request #2802 from andreaso/cachedir-https-links
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Use https:// for linking CACHEDIR.TAG specs
2020-06-21 20:01:42 +02:00
0fcef2ec23
Use https:// for linking CACHEDIR.TAG specs
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That site might not have supported https:// when those links were
originally added. It does now.
Also dropping the _spec.html_ ending of the url, there being a `<link
rel="canonical" ...>` tag suggesting that that no longer being the
preferred address.
2020-06-21 19:36:26 +02:00
212607dc8a
Merge pull request #2760 from greatroar/backend-benchmark
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Fix backend benchmarks + a micro-optimization
2020-06-17 23:17:05 +02:00
190d8e2f51
Flatten backend.LimitedReadCloser structure
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This inlines the io.LimitedReader into the LimitedReadCloser body to
achieve fewer allocations. Results on linux/amd64:
name old time/op new time/op delta
Backend/BenchmarkLoadPartialFile-8 412µs ± 4% 413µs ± 4% ~ (p=0.634 n=17+17)
Backend/BenchmarkLoadPartialFileOffset-8 455µs ±13% 441µs ±10% ~ (p=0.072 n=20+18)
name old speed new speed delta
Backend/BenchmarkLoadPartialFile-8 10.2GB/s ± 3% 10.2GB/s ± 4% ~ (p=0.817 n=16+17)
Backend/BenchmarkLoadPartialFileOffset-8 9.25GB/s ±12% 9.54GB/s ± 9% ~ (p=0.072 n=20+18)
name old alloc/op new alloc/op delta
Backend/BenchmarkLoadPartialFile-8 888B ± 0% 872B ± 0% -1.80% (p=0.000 n=15+15)
Backend/BenchmarkLoadPartialFileOffset-8 888B ± 0% 872B ± 0% -1.80% (p=0.000 n=15+15)
name old allocs/op new allocs/op delta
Backend/BenchmarkLoadPartialFile-8 18.0 ± 0% 17.0 ± 0% -5.56% (p=0.000 n=15+15)
Backend/BenchmarkLoadPartialFileOffset-8 18.0 ± 0% 17.0 ± 0% -5.56% (p=0.000 n=15+15)
2020-06-17 13:11:45 +02:00
f4cd2a7120
Make backend benchmarks fairer by removing checks
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Checking whether the right data is returned takes up half the time in
some benchmarks. Results for local backend benchmarks on linux/amd64:
name old time/op new time/op delta
Backend/BenchmarkLoadFile-8 4.89ms ± 0% 2.72ms ± 1% -44.26% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFile-8 936µs ± 6% 439µs ±15% -53.07% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFileOffset-8 940µs ± 1% 456µs ±10% -51.50% (p=0.008 n=5+5)
Backend/BenchmarkSave-8 23.9ms ±14% 24.8ms ±41% ~ (p=0.690 n=5+5)
name old speed new speed delta
Backend/BenchmarkLoadFile-8 3.43GB/s ± 0% 6.16GB/s ± 1% +79.40% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFile-8 4.48GB/s ± 6% 9.63GB/s ±14% +114.78% (p=0.008 n=5+5)
Backend/BenchmarkLoadPartialFileOffset-8 4.46GB/s ± 1% 9.22GB/s ±10% +106.74% (p=0.008 n=5+5)
Backend/BenchmarkSave-8 706MB/s ±13% 698MB/s ±31% ~ (p=0.690 n=5+5)
2020-06-17 13:11:45 +02:00
greatroar