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Author SHA1 Message Date
Alexander Weiss
a666a6d576 Add tests and merge indexes in index benchmarks 2020-07-22 21:54:02 +02:00
Alexander Weiss
e388d962a5 Merge final indexes together for faster index access 2020-07-22 21:54:02 +02:00
Alexander Weiss
3b7a3711e6 Add more realistic index benchmarks 
+ reduce test size of BenchmarkMasterIndexLookupParallel
 2020-07-21 07:18:20 +02:00
MichaelEischer
82c908871d
Merge pull request #2812 from greatroar/chaining 
Chaining hash table for repository.Index
 2020-07-20 23:29:36 +02:00
MichaelEischer
bd3e280f6d
Merge pull request #2546 from Summerdave/fix-backup-error-code 
Return an error when errors occured during backup
 2020-07-20 22:31:46 +02:00
MichaelEischer
2746dcdb5f
Merge pull request #2845 from restic/update-chunker 
Update chunker
 2020-07-20 22:20:28 +02:00
David Sommer
5729d967f5 backup: Return exit status code 3 when failing to read source data 
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
Alexander Neumann
f9f6124558 Update chunker 2020-07-20 22:07:02 +02:00
Alexander Neumann
8074879c5f Remove 'go generate' 2020-07-19 17:28:42 +02:00
greatroar
7bda28f31f Chaining hash table for repository.Index 
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
greatroar
255ba83c4b Parallel index benchmarks + benchmark optimizations 
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
MichaelEischer
7dc200c593
Merge pull request #2832 from alrs/fix-fuse-test-err 
internal/fuse: fix dropped test error
 2020-07-16 22:28:20 +02:00
Lars Lehtonen
9ac90cf5cd
internal/fuse: fix dropped test error 2020-07-12 21:42:31 -07:00
MichaelEischer
b84f5177cb
Merge pull request #2790 from greatroar/fix-quadratic-read 
Fix quadratic file reading in restic mount
 2020-07-12 18:42:14 +02:00
greatroar
4cf1c8e8da Changelog entry for subquadratic reading in mount 2020-07-12 18:27:16 +02:00
greatroar
58719e1f47 Replace mount's per-file cache by a global LRU cache 2020-07-12 18:27:16 +02:00
greatroar
d42c169458 Fix quadratic file reading in restic mount 2020-07-12 18:27:16 +02:00
rawtaz
8598bb042b
Merge pull request #2769 from darkdragon-001/patch-1 
Update documentation for environment variables
 2020-07-12 00:40:21 +02:00
darkdragon-001
c6b74962df Update 040_backup.rst 
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
MichaelEischer
2c72924ffb
Merge pull request #2813 from greatroar/encrypt-benchmark 
Fix repository_test.BenchmarkSaveAndEncrypt
 2020-07-05 17:52:10 +02:00
greatroar
02bec13ef2 Fix repository_test.BenchmarkSaveAndEncrypt 
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
MichaelEischer
64976b1a4d
Merge pull request #2815 from scelfo/patch-1 
--hostname flag is deprecated
 2020-06-29 22:04:56 +02:00
Tony Scelfo
6a607d6ded
--hostname flag is deprecated 
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
rawtaz
6fedf1a7f4
Merge pull request #2809 from lessfoobar/patch-2 
Update 080_examples.rst
 2020-06-26 00:12:05 +02:00
@lessfoobar
df946fd9f8
Update 080_examples.rst 2020-06-26 00:01:30 +02:00
rawtaz
1bc80c3c8d
Merge pull request #2802 from andreaso/cachedir-https-links 
Use https:// for linking CACHEDIR.TAG specs
 2020-06-21 20:01:42 +02:00
Andreas Olsson
0fcef2ec23
Use https:// for linking CACHEDIR.TAG specs 
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
MichaelEischer
212607dc8a
Merge pull request #2760 from greatroar/backend-benchmark 
Fix backend benchmarks + a micro-optimization
 2020-06-17 23:17:05 +02:00
greatroar
190d8e2f51 Flatten backend.LimitedReadCloser structure 
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
greatroar
f4cd2a7120 Make backend benchmarks fairer by removing checks 
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
MichaelEischer
aba270df7e
Merge pull request #2786 from aawsome/memory-list-blobs 
Loop over index files for 'list blobs'
 2020-06-15 22:27:29 +02:00
Alexander Weiss
b5543cff5d Loop over index files for 'list blobs' 
=> reduces memory consumption a lot!
 2020-06-14 17:25:34 +02:00
Alexander Neumann
285b5236c2
Merge pull request #2684 from MichaelEischer/cleanup-output 
Cleanup command output code
 2020-06-14 11:25:40 +02:00
Michael Eischer
bb1e258bb7 cat/stats: Get stdout from globalOptions 2020-06-14 11:08:11 +02:00
Michael Eischer
182655bc88 Replace fmt.Printf/Println/Fprintf with wrapper functions 
cmd/restic/globals.go already provides Printf, Println and Warnf wrapper
which get their output streams from the globalOptions object. This
allows for stream replacements when testing.
 2020-06-14 11:08:11 +02:00
MichaelEischer
74bc7141c1
Merge pull request #2781 from aawsome/reduce-index-memory 
Reduce index memory
 2020-06-14 10:58:28 +02:00
Alexander Weiss
1361341c58 don't save duplicate packIDs when using internal/repository/Index.Store 2020-06-14 07:56:24 +02:00
Alexander Weiss
ce4a2f4ca6 save packIDs and duplicates separately 
A side remark to the definition of Index.blob:

Another possibility would have been to use:
blob       map[restic.BlobHandle]*indexEntry

This would have led to the following sizes:
key: 32 + 1 = 33 bytes
value: 8 bytes
indexEntry:  8 + 4 + 4 = 16 bytes
each packID: 32 bytes

To save N index entries, we would therefore have needed:
N * OF * (33 + 8) bytes + N * 16 + N * 32 bytes / BP = N * 82 bytes

More precicely, using a pointer instead of a direct entry is the better memory choice if:
OF * 8 bytes + entrysize < OF * entrysize <=> entrysize > 8 bytes * OF/(OF-1)
Under the assumption of OF=1.5, this means using pointers would have been the better choice
if sizeof(indexEntry) > 24 bytes.
 2020-06-14 07:56:21 +02:00
Alexander Weiss
cf979e2b81 make offset and length uint32 2020-06-14 07:50:19 +02:00
Michael Eischer
d92e2c5769 simplify index code 2020-06-14 07:50:19 +02:00
Alexander Weiss
7419844885 add changelog, benchmark, memory calculation 2020-06-14 07:50:15 +02:00
rawtaz
1d66bb9e62
Merge pull request #2784 from MichaelEischer/minio-sha256-changelog 
Add changelog for #2709
 2020-06-13 18:33:54 +02:00
Michael Eischer
0b2c31b05b Add changelog for #2709 2020-06-13 18:13:36 +02:00
MichaelEischer
dd7b4f54f5
Merge pull request #2709 from greatroar/minio-sha256 
Use Minio's optimized SHA-256
 2020-06-12 23:32:58 +02:00
MichaelEischer
6896c6449b
Merge pull request #2779 from greatroar/archiver-comment 
Fix up comment on archiver.BlobSaver.Save
 2020-06-12 23:04:21 +02:00
MichaelEischer
735a8074d5
Merge pull request #2773 from aawsome/index-uploads+knownblobs 
Fix non-intuitive repo behavior
 2020-06-12 22:41:04 +02:00
Alexander Weiss
70347e95d5 disable index uploads for prune command 
+ modifications of changelog
 2020-06-12 09:24:38 +02:00
greatroar
0fa3091c78 Fix up comment on archiver.BlobSaver.Save 2020-06-11 13:40:30 +02:00
Alexander Weiss
91906911b0 Fix non-intuitive repository behavior 
- The SaveBlob method now checks for duplicates.
- Moves handling of pending blobs to MasterIndex.
  -> also cleans up pending index entries when they are saved in the index
  -> when using SaveBlob no need to care about index any longer
- Always check for full index and save it when storing packs.
  -> removes the need of an index uploader
  -> also removes the verbose "uploaded intermediate index" messages
- The Flush method now also saves the index
- Fix race condition when checking and saving full/non-finalized indexes
 2020-06-11 13:05:23 +02:00
MichaelEischer
fae7f78057
Merge pull request #2755 from greatroar/solaris-workaround 
Remove Solaris build workaround in integration tests
 2020-06-10 23:30:51 +02:00