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Author SHA1 Message Date
Evgenii Stratonikov b36a453238 [#970] fstree: Add build tag to enable generic version on linux 
Unless tested, generic version can start gaining bugs. With a separate
build tag we can have the best of both worlds:
1. Use optimized implementation for linux by default.
2. Run tests or benchmarks for both. Note that they are not actually
   run automatically now, but this is at leas possible.

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
 2024-02-09 16:12:11 +00:00
Evgenii Stratonikov fb74524ac7 [#970] fstree: Move delete implementation to a separate file 
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
 2024-02-09 16:12:11 +00:00
Evgenii Stratonikov 7f692409cf [#970] fstree: Handle unsupported O_TMPFILE 
Metabase test relied on this behaviour, so fix the test too.

Cherry-picking was hard and did too many conflicts,
here is an original PR:
https://github.com/nspcc-dev/neofs-node/pull/2624

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
 2024-02-09 16:12:11 +00:00
Roman Khimov fc31b9c947 [#970] fstree: Add linux-specific file writer using O_TMPFILE 
O_TMPFILE is implemented for all modern FSes and it's much easier and safer to
use. If application crashes in the middle of writing this file would be gone
and won't leave any garbage.

Notice that this implementation makes a different choice wrt EEXIST handling,
generic one always overwrites, while this one keeps the old data.

There is no real performance difference.

SSD (slow&old), XFS, Core i7-8565U:

Sync
```
name                                  old time/op    new time/op    delta
Put/size=1024,thread=1/fstree-8         1.74ms ± 3%    0.06ms ± 7%  -96.31%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8        10.0ms ±41%     1.1ms ±18%  -88.95%  (p=0.000 n=9+10)
Put/size=1024,thread=100/fstree-8       32.3ms ±60%     6.5ms ±14%  -79.97%  (p=0.000 n=10+10)
Put/size=1048576,thread=1/fstree-8      17.8ms ±90%     3.4ms ±70%  -81.08%  (p=0.000 n=10+10)
Put/size=1048576,thread=20/fstree-8     103ms ±174%    112ms ±158%     ~     (p=0.971 n=10+10)
Put/size=1048576,thread=100/fstree-8     949ms ±78%    583ms ±132%     ~     (p=0.089 n=10+10)

name                                  old alloc/op   new alloc/op   delta
Put/size=1024,thread=1/fstree-8         3.17kB ± 1%    1.96kB ± 0%  -38.09%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8        59.6kB ± 1%    39.2kB ± 1%  -34.30%  (p=0.000 n=8+10)
Put/size=1024,thread=100/fstree-8        299kB ± 0%     198kB ± 0%  -33.90%  (p=0.000 n=7+9)
Put/size=1048576,thread=1/fstree-8      3.38kB ± 1%    2.36kB ± 1%  -30.22%  (p=0.000 n=10+10)
Put/size=1048576,thread=20/fstree-8     65.7kB ± 4%    47.7kB ± 6%  -27.27%  (p=0.000 n=10+10)
Put/size=1048576,thread=100/fstree-8     351kB ± 8%     245kB ± 8%  -30.22%  (p=0.000 n=10+10)

name                                  old allocs/op  new allocs/op  delta
Put/size=1024,thread=1/fstree-8           30.3 ± 2%      21.0 ± 0%  -30.69%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8           554 ± 1%       413 ± 0%  -25.35%  (p=0.000 n=8+10)
Put/size=1024,thread=100/fstree-8        2.77k ± 0%     2.07k ± 0%  -25.27%  (p=0.000 n=7+10)
Put/size=1048576,thread=1/fstree-8        32.0 ± 0%      25.0 ± 0%  -21.88%  (p=0.000 n=9+8)
Put/size=1048576,thread=20/fstree-8        609 ± 5%       494 ± 6%  -18.93%  (p=0.000 n=10+10)
Put/size=1048576,thread=100/fstree-8     3.25k ± 9%     2.50k ± 8%  -23.21%  (p=0.000 n=10+10)
```

No sync
```
name                                  old time/op    new time/op    delta
Put/size=1024,thread=1/fstree-8         71.3µs ±10%    59.8µs ±10%  -16.21%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8        1.43ms ± 6%    1.22ms ±13%  -14.53%  (p=0.000 n=10+10)
Put/size=1024,thread=100/fstree-8       8.12ms ± 3%    6.36ms ± 2%  -21.67%  (p=0.000 n=8+9)
Put/size=1048576,thread=1/fstree-8      1.88ms ±70%    1.61ms ±78%     ~     (p=0.393 n=10+10)
Put/size=1048576,thread=20/fstree-8     32.7ms ±28%   34.2ms ±112%     ~     (p=0.968 n=9+10)
Put/size=1048576,thread=100/fstree-8     262ms ±56%     226ms ±34%     ~     (p=0.447 n=10+9)

name                                  old alloc/op   new alloc/op   delta
Put/size=1024,thread=1/fstree-8         2.89kB ± 0%    1.96kB ± 0%  -32.28%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8        58.2kB ± 0%    39.5kB ± 0%  -32.09%  (p=0.000 n=8+8)
Put/size=1024,thread=100/fstree-8        291kB ± 0%     198kB ± 0%  -32.19%  (p=0.000 n=9+9)
Put/size=1048576,thread=1/fstree-8      3.05kB ± 1%    2.13kB ± 1%  -30.16%  (p=0.000 n=10+9)
Put/size=1048576,thread=20/fstree-8     62.6kB ± 0%    44.3kB ± 0%  -29.23%  (p=0.000 n=9+9)
Put/size=1048576,thread=100/fstree-8     302kB ± 0%     210kB ± 1%  -30.39%  (p=0.000 n=9+9)

name                                  old allocs/op  new allocs/op  delta
Put/size=1024,thread=1/fstree-8           27.0 ± 0%      21.0 ± 0%  -22.22%  (p=0.000 n=10+10)
Put/size=1024,thread=20/fstree-8           539 ± 0%       415 ± 0%  -22.98%  (p=0.000 n=10+10)
Put/size=1024,thread=100/fstree-8        2.69k ± 0%     2.07k ± 0%  -23.09%  (p=0.000 n=9+9)
Put/size=1048576,thread=1/fstree-8        28.0 ± 0%      22.3 ± 3%  -20.36%  (p=0.000 n=8+10)
Put/size=1048576,thread=20/fstree-8        577 ± 0%       458 ± 0%  -20.72%  (p=0.000 n=9+9)
Put/size=1048576,thread=100/fstree-8     2.76k ± 0%     2.15k ± 0%  -22.05%  (p=0.000 n=9+8)
```

HDD (LVM), ext4, Ryzen 5 1600:

Sync
```
                                      │ fs.sync-generic │            fs.sync-linux            │
                                      │     sec/op      │    sec/op     vs base               │
Put/size=1024,thread=1/fstree-12           34.70m ± 19%   33.59m ± 16%       ~ (p=0.529 n=10)
Put/size=1024,thread=20/fstree-12          188.8m ±  8%   189.2m ± 16%       ~ (p=0.739 n=10)
Put/size=1024,thread=100/fstree-12         264.8m ± 22%   273.6m ± 28%       ~ (p=0.353 n=10)
Put/size=1048576,thread=1/fstree-12        54.90m ± 14%   47.08m ± 18%       ~ (p=0.063 n=10)
Put/size=1048576,thread=20/fstree-12       244.1m ± 14%   220.4m ± 22%       ~ (p=0.579 n=10)
Put/size=1048576,thread=100/fstree-12      847.2m ±  5%   893.6m ±  3%  +5.48% (p=0.000 n=10)
geomean                                    164.3m         158.9m        -3.29%

                                      │ fs.sync-generic │            fs.sync-linux             │
                                      │      B/op       │     B/op      vs base                │
Put/size=1024,thread=1/fstree-12           3.375Ki ± 1%   2.471Ki ± 1%  -26.80% (p=0.000 n=10)
Put/size=1024,thread=20/fstree-12          66.62Ki ± 6%   49.21Ki ± 6%  -26.15% (p=0.000 n=10)
Put/size=1024,thread=100/fstree-12         319.2Ki ± 1%   230.9Ki ± 2%  -27.64% (p=0.000 n=10)
Put/size=1048576,thread=1/fstree-12        3.457Ki ± 1%   2.559Ki ± 1%  -25.97% (p=0.000 n=10)
Put/size=1048576,thread=20/fstree-12       66.91Ki ± 1%   49.16Ki ± 1%  -26.52% (p=0.000 n=10)
Put/size=1048576,thread=100/fstree-12      338.8Ki ± 2%   252.3Ki ± 3%  -25.54% (p=0.000 n=10)
geomean                                    42.17Ki        31.02Ki       -26.44%

                                      │ fs.sync-generic │            fs.sync-linux            │
                                      │    allocs/op    │  allocs/op   vs base                │
Put/size=1024,thread=1/fstree-12             33.00 ± 0%    27.00 ± 0%  -18.18% (p=0.000 n=10)
Put/size=1024,thread=20/fstree-12            639.5 ± 1%    519.0 ± 2%  -18.84% (p=0.000 n=10)
Put/size=1024,thread=100/fstree-12          3.059k ± 1%   2.478k ± 2%  -18.99% (p=0.000 n=10)
Put/size=1048576,thread=1/fstree-12          33.50 ± 1%    28.00 ± 4%  -16.42% (p=0.000 n=10)
Put/size=1048576,thread=20/fstree-12         638.5 ± 1%    520.0 ± 1%  -18.56% (p=0.000 n=10)
Put/size=1048576,thread=100/fstree-12       3.209k ± 2%   2.655k ± 2%  -17.28% (p=0.000 n=10)
geomean                                      405.3         332.1       -18.05%
```

No sync
```
                                      │ fs.nosync-generic │             fs.nosync-linux              │
                                      │      sec/op       │    sec/op     vs base                    │
Put/size=1024,thread=1/fstree-12           148.2µ ± 20%     136.6µ ± 19%   -7.89% (p=0.029 n=10)
Put/size=1024,thread=20/fstree-12          1.140m ± 26%     1.364m ± 16%        ~ (p=0.143 n=10)
Put/size=1024,thread=100/fstree-12         11.93m ± 68%     26.89m ± 62%        ~ (p=0.123 n=10)
Put/size=1048576,thread=1/fstree-12        1.302m ±  3%     1.287m ±  5%        ~ (p=0.481 n=10)
Put/size=1048576,thread=20/fstree-12       77.52m ±  8%     74.07m ±  7%        ~ (p=0.278 n=10+9)
Put/size=1048576,thread=100/fstree-12      226.1m ±   ∞ ¹
geomean                                    5.986m           3.434m        +18.60%                  ²
¹ need >= 6 samples for confidence interval at level 0.95
² benchmark set differs from baseline; geomeans may not be comparable

                                      │ fs.nosync-generic │             fs.nosync-linux              │
                                      │       B/op        │     B/op      vs base                    │
Put/size=1024,thread=1/fstree-12           2.879Ki ± 0%     1.972Ki ± 0%  -31.51% (p=0.000 n=10)
Put/size=1024,thread=20/fstree-12          55.94Ki ± 1%     37.90Ki ± 1%  -32.25% (p=0.000 n=10)
Put/size=1024,thread=100/fstree-12         272.6Ki ± 0%     182.1Ki ± 9%  -33.21% (p=0.000 n=10)
Put/size=1048576,thread=1/fstree-12        3.158Ki ± 0%     2.259Ki ± 0%  -28.46% (p=0.000 n=10)
Put/size=1048576,thread=20/fstree-12       58.87Ki ± 0%     41.03Ki ± 0%  -30.30% (p=0.000 n=10+9)
Put/size=1048576,thread=100/fstree-12      299.8Ki ±  ∞ ¹
geomean                                    36.71Ki          16.60Ki       -31.17%                  ²
¹ need >= 6 samples for confidence interval at level 0.95
² benchmark set differs from baseline; geomeans may not be comparable

                                      │ fs.nosync-generic │            fs.nosync-linux            │
                                      │     allocs/op     │  allocs/op   vs base                  │
Put/size=1024,thread=1/fstree-12             28.00 ± 0%      22.00 ± 0%  -21.43% (p=0.000 n=10)
Put/size=1024,thread=20/fstree-12            530.0 ± 0%      407.5 ± 1%  -23.11% (p=0.000 n=10)
Put/size=1024,thread=100/fstree-12          2.567k ± 0%     1.956k ± 9%  -23.77% (p=0.000 n=10)
Put/size=1048576,thread=1/fstree-12          30.00 ± 0%      24.00 ± 0%  -20.00% (p=0.000 n=10)
Put/size=1048576,thread=20/fstree-12         553.5 ± 0%      434.0 ± 0%  -21.59% (n=10+9)
Put/size=1048576,thread=100/fstree-12       2.803k ±  ∞ ¹
geomean                                      347.9           178.8       -21.99%                ²
¹ need >= 6 samples for confidence interval at level 0.95
² benchmark set differs from baseline; geomeans may not be comparable
```

Signed-off-by: Roman Khimov <roman@nspcc.ru>
Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
 2024-02-09 16:12:11 +00:00