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authorLisandro Pin <lisandro.pin@proton.ch>2025-06-03 02:09:01 +0200
committerGitHub <noreply@github.com>2025-06-02 17:09:01 -0700
commit72047317498700d349afa15b370d3ba8e88fa417 (patch)
treed7ce33f899701d732c48b3fea03a13b631599764
parent5e354a18a3d7f09a8d28917b0751967c07f87104 (diff)
downloadseaweedfs-72047317498700d349afa15b370d3ba8e88fa417.tar.xz
seaweedfs-72047317498700d349afa15b370d3ba8e88fa417.zip
Minor fix for the `CompactMap()` performance test. (#6836)
Per-entry memory usage is based on `TotalAllocs`, which is incorrect - that value is a cummulative of heap usage, which doesn't decrease when objects are freeed. `Allocs` is instead an accurate represeentation of actual memory usage at the time metrics are reported.
-rw-r--r--weed/storage/needle_map/compact_map_perf_test.go4
1 files changed, 2 insertions, 2 deletions
diff --git a/weed/storage/needle_map/compact_map_perf_test.go b/weed/storage/needle_map/compact_map_perf_test.go
index 2bb2694fd..e1fb1b035 100644
--- a/weed/storage/needle_map/compact_map_perf_test.go
+++ b/weed/storage/needle_map/compact_map_perf_test.go
@@ -16,7 +16,7 @@ import (
To see the memory usage:
go test -run TestMemoryUsage
-The TotalAlloc section shows the memory increase for each iteration.
+The Alloc section shows the in-use memory increase for each iteration.
go test -run TestMemoryUsage -memprofile=mem.out
go tool pprof --alloc_space needle.test mem.out
@@ -81,7 +81,7 @@ func PrintMemUsage(totalRowCount uint64) {
var m runtime.MemStats
runtime.ReadMemStats(&m)
// For info on each, see: https://golang.org/pkg/runtime/#MemStats
- fmt.Printf("Each %.2f Bytes", float64(m.TotalAlloc)/float64(totalRowCount))
+ fmt.Printf("Each %.02f Bytes", float64(m.Alloc)/float64(totalRowCount))
fmt.Printf("\tAlloc = %v MiB", bToMb(m.Alloc))
fmt.Printf("\tTotalAlloc = %v MiB", bToMb(m.TotalAlloc))
fmt.Printf("\tSys = %v MiB", bToMb(m.Sys))