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app/vmselect/netstorage: properly pre-allocate space for sbs

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This commit is contained in:
Aliaksandr Valialkin 2020-09-22 23:50:55 +03:00
parent 89d652b583
commit 0468cdf33e
1 changed files with 3 additions and 2 deletions
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5
app/vmselect/netstorage/netstorage.go
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@ -264,7 +264,8 @@ func (pts *packedTimeseries) Unpack(tbf *tmpBlocksFile, dst *Result, tr storage.
} }
// Feed workers with work // Feed workers with work
upws := make([]*unpackWork, 0, 1+len(pts.addrs)/unpackBatchSize) addrsLen := len(pts.addrs)
upws := make([]*unpackWork, 0, 1+addrsLen/unpackBatchSize)
upw := getUnpackWork() upw := getUnpackWork()
upw.tbf = tbf upw.tbf = tbf
upw.fetchData = fetchData upw.fetchData = fetchData
@ -288,7 +289,7 @@ func (pts *packedTimeseries) Unpack(tbf *tmpBlocksFile, dst *Result, tr storage.
pts.addrs = pts.addrs[:0] pts.addrs = pts.addrs[:0]
// Wait until work is complete // Wait until work is complete
sbs := make([]*sortBlock, 0, len(pts.addrs)) sbs := make([]*sortBlock, 0, addrsLen)
var firstErr error var firstErr error
for _, upw := range upws { for _, upw := range upws {
if err := <-upw.doneCh; err != nil && firstErr == nil { if err := <-upw.doneCh; err != nil && firstErr == nil {