Commit graph

11 commits

Author SHA1 Message Date
a685fcdc96 [#1317] go.mod: Use range over int
Since Go 1.22 a "for" statement with a "range" clause is able
to iterate through integer values from zero to an upper limit.

gopatch script:
@@
var i, e expression
@@
-for i := 0; i <= e - 1; i++ {
+for i := range e {
    ...
}

@@
var i, e expression
@@
-for i := 0; i <= e; i++ {
+for i := range e + 1 {
    ...
}

@@
var i, e expression
@@
-for i := 0; i < e; i++ {
+for i := range e {
    ...
}

Signed-off-by: Ekaterina Lebedeva <ekaterina.lebedeva@yadro.com>
2024-09-03 13:00:54 +03:00
c80b46fad3 [#754] blobstor: Estimate compressability
Now it is possible to enable compressability estimation.
If data is likely uncompressable, it should reduce CPU time and memory.

Signed-off-by: Dmitrii Stepanov <d.stepanov@yadro.com>
2023-11-01 11:24:32 +03:00
a8de37c8a2 [#607] *: Remove redundant if on error returns
Semantic patch:
```
@@
@@
-if err != nil { return err }
-return nil
+return err
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-08-17 16:50:02 +00:00
a1b4ba9980 [#209] compression: Do not store uncompressible data
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2023-05-03 16:28:29 +03:00
20de74a505 Rename package name
Due to source code relocation from GitHub.

Signed-off-by: Alex Vanin <a.vanin@yadro.com>
2023-03-07 16:38:26 +03:00
0272218eb9 [#2184] compression: Properly calculate upper bound
If the data is not compressible allocating `len(data)` will lead to a
slice reallocation. For a compressible data the results for small size
are flaky and we allocate a bit more. However, it feels right to use a
provided function if we need to pick any size at all.

```
name                                                           old time/op    new time/op    delta
Compression/size=128/zeroed_slice-8                              2.23µs ±12%    2.06µs ± 6%   -7.35%  (p=0.009 n=10+10)
Compression/size=128/not_so_random_slice_(block_=_123)-8         19.0µs ±10%    15.8µs ±16%  -17.09%  (p=0.000 n=9+10)
Compression/size=128/random_slice-8                              17.6µs ±15%    16.1µs ±16%     ~     (p=0.075 n=10+10)
Compression/size=1024/zeroed_slice-8                             3.05µs ±11%    2.84µs ±10%     ~     (p=0.089 n=10+10)
Compression/size=1024/not_so_random_slice_(block_=_123)-8        18.1µs ± 6%    18.2µs ±12%     ~     (p=0.971 n=10+10)
Compression/size=1024/random_slice-8                             48.6µs ± 6%    45.6µs ± 5%   -6.07%  (p=0.006 n=10+9)
Compression/size=32768/zeroed_slice-8                            26.8µs ± 3%    28.7µs ± 8%   +7.23%  (p=0.001 n=10+10)
Compression/size=32768/not_so_random_slice_(block_=_123)-8       44.3µs ± 8%    43.7µs ±13%     ~     (p=0.762 n=8+10)
Compression/size=32768/random_slice-8                            97.3µs ±32%    68.9µs ±15%  -29.13%  (p=0.000 n=10+10)
Compression/size=33554432/zeroed_slice-8                         29.8ms ± 9%    30.3ms ±17%     ~     (p=1.000 n=9+9)
Compression/size=33554432/not_so_random_slice_(block_=_123)-8    33.1ms ±14%    30.3ms ±11%   -8.61%  (p=0.043 n=10+10)
Compression/size=33554432/random_slice-8                         41.7ms ± 3%    30.1ms ± 8%  -27.72%  (p=0.000 n=9+10)

name                                                           old alloc/op   new alloc/op   delta
Compression/size=128/zeroed_slice-8                                128B ± 0%      144B ± 0%  +12.50%  (p=0.000 n=10+10)
Compression/size=128/not_so_random_slice_(block_=_123)-8           384B ± 0%      144B ± 0%  -62.50%  (p=0.000 n=10+10)
Compression/size=128/random_slice-8                                384B ± 0%      144B ± 0%  -62.50%  (p=0.000 n=10+10)
Compression/size=1024/zeroed_slice-8                             1.02kB ± 0%    1.15kB ± 0%  +12.50%  (p=0.000 n=10+10)
Compression/size=1024/not_so_random_slice_(block_=_123)-8        1.02kB ± 0%    1.15kB ± 0%  +12.50%  (p=0.000 n=10+10)
Compression/size=1024/random_slice-8                             2.56kB ± 0%    1.15kB ± 0%  -55.00%  (p=0.000 n=10+10)
Compression/size=32768/zeroed_slice-8                            32.8kB ± 0%    41.0kB ± 0%  +25.00%  (p=0.000 n=10+10)
Compression/size=32768/not_so_random_slice_(block_=_123)-8       32.8kB ± 0%    41.0kB ± 0%  +25.00%  (p=0.000 n=10+10)
Compression/size=32768/random_slice-8                            81.9kB ± 0%    41.0kB ± 0%  -50.00%  (p=0.000 n=10+10)
Compression/size=33554432/zeroed_slice-8                         33.6MB ± 0%    33.6MB ± 0%   +0.02%  (p=0.000 n=9+9)
Compression/size=33554432/not_so_random_slice_(block_=_123)-8    33.6MB ± 0%    33.6MB ± 0%   +0.02%  (p=0.000 n=8+10)
Compression/size=33554432/random_slice-8                         75.5MB ± 0%    33.6MB ± 0%  -55.55%  (p=0.000 n=10+10)

name                                                           old allocs/op  new allocs/op  delta
Compression/size=128/zeroed_slice-8                                1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=128/not_so_random_slice_(block_=_123)-8           2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
Compression/size=128/random_slice-8                                2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
Compression/size=1024/zeroed_slice-8                               1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=1024/not_so_random_slice_(block_=_123)-8          1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=1024/random_slice-8                               2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
Compression/size=32768/zeroed_slice-8                              1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=32768/not_so_random_slice_(block_=_123)-8         1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=32768/random_slice-8                              2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
Compression/size=33554432/zeroed_slice-8                           1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=33554432/not_so_random_slice_(block_=_123)-8      1.00 ± 0%      1.00 ± 0%     ~     (all equal)
Compression/size=33554432/random_slice-8                           2.00 ± 0%      1.00 ± 0%  -50.00%  (p=0.000 n=10+10)
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
2022-12-30 11:07:35 +03:00
Pavel Karpy
923f84722a Move to frostfs-node
Signed-off-by: Pavel Karpy <p.karpy@yadro.com>
2022-12-28 15:04:29 +03:00
Evgenii Stratonikov
1cb892c579 [#1910] .golangci.yml: Add misspell linker
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-10-18 15:08:26 +03:00
Evgenii Stratonikov
e8c6dce466 [#1523] blobstor: Rename compression.CConfig to Config
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-08-22 13:14:19 +03:00
Evgenii Stratonikov
266458fe5c [#1523] blobstor: Unify fstree and blobovnicza interfaces
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2022-08-22 13:14:19 +03:00
Evgenii Stratonikov
b621f5983a [#1523] local_object_storage: Move blobovnicza tree to a separate package
Signed-off-by: Evgenii Stratonikov <evgeniy@nspcc.ru>
2022-08-22 13:14:19 +03:00