90 lines
4.1 KiB
Go
90 lines
4.1 KiB
Go
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//go:build linux
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// +build linux
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package slab
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import (
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"os"
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"testing"
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"github.com/influxdata/telegraf/testutil"
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"github.com/stretchr/testify/require"
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)
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func makeFakeStatFile(content []byte) string {
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tmpfile, err := os.CreateTemp("", "slab_test")
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if err != nil {
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panic(err)
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}
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if _, err := tmpfile.Write(content); err != nil {
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panic(err)
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}
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if err := tmpfile.Close(); err != nil {
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panic(err)
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}
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return tmpfile.Name()
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}
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func TestSlab(t *testing.T) {
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slabStats := SlabStats{
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statFile: makeFakeStatFile([]byte(procSlabInfo)),
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}
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var acc testutil.Accumulator
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err := acc.GatherError(slabStats.Gather)
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require.NoError(t, err)
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fields := map[string]interface{}{
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"ext4_allocation_context_size": int(16384),
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"ext4_extent_status_size": int(8160),
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"ext4_free_data_size": int(0),
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"ext4_inode_cache_size": int(491520),
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"ext4_io_end_size": int(4032),
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"ext4_xattr_size": int(0),
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"kmalloc_1024_size": int(239927296),
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"kmalloc_128_size": int(5586944),
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"kmalloc_16_size": int(17002496),
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"kmalloc_192_size": int(4015872),
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"kmalloc_2048_size": int(3309568),
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"kmalloc_256_size": int(5423104),
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"kmalloc_32_size": int(3657728),
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"kmalloc_4096_size": int(2359296),
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"kmalloc_512_size": int(41435136),
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"kmalloc_64_size": int(8536064),
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"kmalloc_8_size": int(229376),
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"kmalloc_8192_size": int(1048576),
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"kmalloc_96_size": int(12378240),
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"kmem_cache_size": int(81920),
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"kmem_cache_node_size": int(36864),
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}
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acc.AssertContainsFields(t, "slab", fields)
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}
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var procSlabInfo = `slabinfo - version: 2.1
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# name <active_objs> <num_objs> <objsize> <objperslab> <pagesperslab> : tunables <limit> <batchcount> <sharedfactor> : slabdata <active_slabs> <num_slabs> <sharedavail>
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ext4_inode_cache 480 480 1024 32 8 : tunables 0 0 0 : slabdata 15 15 0
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ext4_xattr 0 0 88 46 1 : tunables 0 0 0 : slabdata 0 0 0
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ext4_free_data 0 0 64 64 1 : tunables 0 0 0 : slabdata 0 0 0
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ext4_allocation_context 128 128 128 32 1 : tunables 0 0 0 : slabdata 4 4 0
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ext4_io_end 56 56 72 56 1 : tunables 0 0 0 : slabdata 1 1 0
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ext4_extent_status 204 204 40 102 1 : tunables 0 0 0 : slabdata 2 2 0
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kmalloc-8192 106 128 8192 4 8 : tunables 0 0 0 : slabdata 32 32 0
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kmalloc-4096 486 576 4096 8 8 : tunables 0 0 0 : slabdata 72 72 0
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kmalloc-2048 1338 1616 2048 16 8 : tunables 0 0 0 : slabdata 101 101 0
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kmalloc-1024 155845 234304 1024 32 8 : tunables 0 0 0 : slabdata 7329 7329 0
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kmalloc-512 18995 80928 512 32 4 : tunables 0 0 0 : slabdata 2529 2529 0
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kmalloc-256 16366 21184 256 32 2 : tunables 0 0 0 : slabdata 662 662 0
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kmalloc-192 18835 20916 192 21 1 : tunables 0 0 0 : slabdata 996 996 0
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kmalloc-128 23600 43648 128 32 1 : tunables 0 0 0 : slabdata 1364 1364 0
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kmalloc-96 95106 128940 96 42 1 : tunables 0 0 0 : slabdata 3070 3070 0
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kmalloc-64 82432 133376 64 64 1 : tunables 0 0 0 : slabdata 2084 2084 0
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kmalloc-32 78477 114304 32 128 1 : tunables 0 0 0 : slabdata 893 893 0
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kmalloc-16 885605 1062656 16 256 1 : tunables 0 0 0 : slabdata 4151 4151 0
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kmalloc-8 28672 28672 8 512 1 : tunables 0 0 0 : slabdata 56 56 0
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kmem_cache_node 576 576 64 64 1 : tunables 0 0 0 : slabdata 9 9 0
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kmem_cache 320 320 256 32 2 : tunables 0 0 0 : slabdata 10 10 0
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`
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