O_TMPFILE #2566
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O_TMPFILE #2566
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It's a draft, because I don't intend to include it into 0.38.0, but otherwise I wanted to make it available for some quick review. |
BBCZ is deprecated, so it's not added into generic Put test, but the test itself is transferred. Signed-off-by: Roman Khimov <[email protected]>
Signed-off-by: Roman Khimov <[email protected]>
This makes it possible to override it. No functional changes. Signed-off-by: Roman Khimov <[email protected]>
It's unused. Can be reintroduced if needed. Signed-off-by: Roman Khimov <[email protected]>
Allow overriding it. No functional changes. Signed-off-by: Roman Khimov <[email protected]>
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 <[email protected]>
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Wow, no conflict already. |
cthulhu-rider
approved these changes
Sep 19, 2023
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Use a little more appropriate way to generate tmp files.