TrueCloudLab/frostfs-node
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[#1683] metabase: Check object status once in Select()
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Browse source 
objectStatus() is called twice for the same object:
First, in selectObject() to filter removed objects.
Then, again, in getObjectForSlowFilters() via db.get().
The second call will return the same result, so remove useless branch.

```
goos: linux
goarch: amd64
pkg: git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/metabase
cpu: 11th Gen Intel(R) Core(TM) i5-1135G7 @ 2.40GHz
                          │     old     │                status                │
                          │   sec/op    │    sec/op     vs base                │
Select/string_equal-8       5.022m ± 7%   3.968m ±  8%  -20.98% (p=0.000 n=10)
Select/string_not_equal-8   4.953m ± 9%   3.990m ± 10%  -19.44% (p=0.000 n=10)
Select/common_prefix-8      4.962m ± 8%   3.971m ±  9%  -19.98% (p=0.000 n=10)
Select/unknown-8            5.246m ± 9%   3.548m ±  5%  -32.37% (p=0.000 n=10)
geomean                     5.045m        3.865m        -23.39%

                          │     old      │                status                │
                          │     B/op     │     B/op      vs base                │
Select/string_equal-8       2.685Mi ± 0%   2.250Mi ± 0%  -16.20% (p=0.000 n=10)
Select/string_not_equal-8   2.685Mi ± 0%   2.250Mi ± 0%  -16.20% (p=0.000 n=10)
Select/common_prefix-8      2.685Mi ± 0%   2.250Mi ± 0%  -16.20% (p=0.000 n=10)
Select/unknown-8            2.677Mi ± 0%   2.243Mi ± 0%  -16.24% (p=0.000 n=10)
geomean                     2.683Mi        2.248Mi       -16.21%

                          │     old     │               status                │
                          │  allocs/op  │  allocs/op   vs base                │
Select/string_equal-8       69.03k ± 0%   56.02k ± 0%  -18.84% (p=0.000 n=10)
Select/string_not_equal-8   69.03k ± 0%   56.02k ± 0%  -18.84% (p=0.000 n=10)
Select/common_prefix-8      69.03k ± 0%   56.02k ± 0%  -18.84% (p=0.000 n=10)
Select/unknown-8            68.03k ± 0%   55.03k ± 0%  -19.11% (p=0.000 n=10)
geomean                     68.78k        55.77k       -18.90%
```

Signed-off-by: Evgenii Stratonikov <e.stratonikov@yadro.com>
This commit is contained in:
Evgenii Stratonikov 2025-03-18 09:34:47 +03:00 • committed by Evgenii Stratonikov
parent a7319bc979
commit a405fb1f39
1 changed files with 1 additions and 1 deletions
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2
pkg/local_object_storage/metabase/select.go
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@ -517,7 +517,7 @@ func (db *DB) matchSlowFilters(tx *bbolt.Tx, addr oid.Address, f objectSDK.Searc
func (db *DB) getObjectForSlowFilters(tx *bbolt.Tx, addr oid.Address, currEpoch uint64) (*objectSDK.Object, bool, error) {
buf := make([]byte, addressKeySize)
obj, err := db.get(tx, addr, buf, true, false, currEpoch)
obj, err := db.get(tx, addr, buf, false, false, currEpoch)
if err != nil {
var ecInfoError *objectSDK.ECInfoError
if errors.As(err, &ecInfoError) {