316 lines
9.3 KiB
Go
316 lines
9.3 KiB
Go
// +build linux
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package kernel_vmstat
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import (
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"io/ioutil"
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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/assert"
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)
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func TestFullVmStatProcFile(t *testing.T) {
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tmpfile := makeFakeVmStatFile([]byte(vmStatFile_Full))
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defer os.Remove(tmpfile)
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k := KernelVmstat{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.NoError(t, err)
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fields := map[string]interface{}{
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"nr_free_pages": int64(78730),
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"nr_inactive_anon": int64(426259),
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"nr_active_anon": int64(2515657),
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"nr_inactive_file": int64(2366791),
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"nr_active_file": int64(2244914),
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"nr_unevictable": int64(0),
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"nr_mlock": int64(0),
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"nr_anon_pages": int64(1358675),
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"nr_mapped": int64(558821),
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"nr_file_pages": int64(5153546),
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"nr_dirty": int64(5690),
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"nr_writeback": int64(0),
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"nr_slab_reclaimable": int64(459806),
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"nr_slab_unreclaimable": int64(47859),
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"nr_page_table_pages": int64(11115),
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"nr_kernel_stack": int64(579),
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"nr_unstable": int64(0),
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"nr_bounce": int64(0),
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"nr_vmscan_write": int64(6206),
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"nr_writeback_temp": int64(0),
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"nr_isolated_anon": int64(0),
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"nr_isolated_file": int64(0),
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"nr_shmem": int64(541689),
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"numa_hit": int64(6690743595),
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"numa_miss": int64(0),
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"numa_foreign": int64(0),
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"numa_interleave": int64(35793),
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"numa_local": int64(5113399878),
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"numa_other": int64(0),
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"nr_anon_transparent_hugepages": int64(2034),
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"pgpgin": int64(219717626),
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"pgpgout": int64(3495885510),
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"pswpin": int64(2092),
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"pswpout": int64(6206),
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"pgalloc_dma": int64(0),
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"pgalloc_dma32": int64(122480220),
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"pgalloc_normal": int64(5233176719),
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"pgalloc_movable": int64(0),
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"pgfree": int64(5359765021),
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"pgactivate": int64(375664931),
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"pgdeactivate": int64(122735906),
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"pgfault": int64(8699921410),
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"pgmajfault": int64(122210),
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"pgrefill_dma": int64(0),
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"pgrefill_dma32": int64(1180010),
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"pgrefill_normal": int64(119866676),
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"pgrefill_movable": int64(0),
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"pgsteal_dma": int64(0),
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"pgsteal_dma32": int64(4466436),
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"pgsteal_normal": int64(318463755),
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"pgsteal_movable": int64(0),
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"pgscan_kswapd_dma": int64(0),
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"pgscan_kswapd_dma32": int64(4480608),
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"pgscan_kswapd_normal": int64(287857984),
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"pgscan_kswapd_movable": int64(0),
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"pgscan_direct_dma": int64(0),
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"pgscan_direct_dma32": int64(12256),
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"pgscan_direct_normal": int64(31501600),
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"pgscan_direct_movable": int64(0),
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"zone_reclaim_failed": int64(0),
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"pginodesteal": int64(9188431),
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"slabs_scanned": int64(93775616),
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"kswapd_steal": int64(291534428),
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"kswapd_inodesteal": int64(29770874),
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"kswapd_low_wmark_hit_quickly": int64(8756),
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"kswapd_high_wmark_hit_quickly": int64(25439),
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"kswapd_skip_congestion_wait": int64(0),
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"pageoutrun": int64(505006),
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"allocstall": int64(81496),
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"pgrotated": int64(60620),
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"compact_blocks_moved": int64(238196),
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"compact_pages_moved": int64(6370588),
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"compact_pagemigrate_failed": int64(0),
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"compact_stall": int64(142092),
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"compact_fail": int64(135220),
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"compact_success": int64(6872),
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"htlb_buddy_alloc_success": int64(0),
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"htlb_buddy_alloc_fail": int64(0),
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"unevictable_pgs_culled": int64(1531),
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"unevictable_pgs_scanned": int64(0),
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"unevictable_pgs_rescued": int64(5426),
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"unevictable_pgs_mlocked": int64(6988),
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"unevictable_pgs_munlocked": int64(6988),
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"unevictable_pgs_cleared": int64(0),
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"unevictable_pgs_stranded": int64(0),
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"unevictable_pgs_mlockfreed": int64(0),
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"thp_fault_alloc": int64(346219),
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"thp_fault_fallback": int64(895453),
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"thp_collapse_alloc": int64(24857),
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"thp_collapse_alloc_failed": int64(102214),
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"thp_split": int64(9817),
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}
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acc.AssertContainsFields(t, "kernel_vmstat", fields)
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}
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func TestPartialVmStatProcFile(t *testing.T) {
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tmpfile := makeFakeVmStatFile([]byte(vmStatFile_Partial))
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defer os.Remove(tmpfile)
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k := KernelVmstat{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.NoError(t, err)
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fields := map[string]interface{}{
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"unevictable_pgs_culled": int64(1531),
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"unevictable_pgs_scanned": int64(0),
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"unevictable_pgs_rescued": int64(5426),
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"unevictable_pgs_mlocked": int64(6988),
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"unevictable_pgs_munlocked": int64(6988),
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"unevictable_pgs_cleared": int64(0),
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"unevictable_pgs_stranded": int64(0),
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"unevictable_pgs_mlockfreed": int64(0),
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"thp_fault_alloc": int64(346219),
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"thp_fault_fallback": int64(895453),
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"thp_collapse_alloc": int64(24857),
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"thp_collapse_alloc_failed": int64(102214),
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"thp_split": int64(9817),
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}
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acc.AssertContainsFields(t, "kernel_vmstat", fields)
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}
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func TestInvalidVmStatProcFile1(t *testing.T) {
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tmpfile := makeFakeVmStatFile([]byte(vmStatFile_Invalid))
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defer os.Remove(tmpfile)
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k := KernelVmstat{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.Error(t, err)
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}
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func TestNoVmStatProcFile(t *testing.T) {
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tmpfile := makeFakeVmStatFile([]byte(vmStatFile_Invalid))
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os.Remove(tmpfile)
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k := KernelVmstat{
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statFile: tmpfile,
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}
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acc := testutil.Accumulator{}
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err := k.Gather(&acc)
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assert.Error(t, err)
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assert.Contains(t, err.Error(), "does not exist")
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}
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const vmStatFile_Full = `nr_free_pages 78730
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nr_inactive_anon 426259
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nr_active_anon 2515657
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nr_inactive_file 2366791
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nr_active_file 2244914
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nr_unevictable 0
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nr_mlock 0
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nr_anon_pages 1358675
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nr_mapped 558821
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nr_file_pages 5153546
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nr_dirty 5690
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nr_writeback 0
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nr_slab_reclaimable 459806
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nr_slab_unreclaimable 47859
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nr_page_table_pages 11115
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nr_kernel_stack 579
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nr_unstable 0
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nr_bounce 0
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nr_vmscan_write 6206
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nr_writeback_temp 0
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nr_isolated_anon 0
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nr_isolated_file 0
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nr_shmem 541689
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numa_hit 6690743595
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numa_miss 0
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numa_foreign 0
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numa_interleave 35793
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numa_local 5113399878
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numa_other 0
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nr_anon_transparent_hugepages 2034
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pgpgin 219717626
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pgpgout 3495885510
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pswpin 2092
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pswpout 6206
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pgalloc_dma 0
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pgalloc_dma32 122480220
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pgalloc_normal 5233176719
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pgalloc_movable 0
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pgfree 5359765021
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pgactivate 375664931
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pgdeactivate 122735906
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pgfault 8699921410
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pgmajfault 122210
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pgrefill_dma 0
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pgrefill_dma32 1180010
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pgrefill_normal 119866676
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pgrefill_movable 0
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pgsteal_dma 0
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pgsteal_dma32 4466436
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pgsteal_normal 318463755
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pgsteal_movable 0
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pgscan_kswapd_dma 0
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pgscan_kswapd_dma32 4480608
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pgscan_kswapd_normal 287857984
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pgscan_kswapd_movable 0
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pgscan_direct_dma 0
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pgscan_direct_dma32 12256
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pgscan_direct_normal 31501600
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pgscan_direct_movable 0
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zone_reclaim_failed 0
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pginodesteal 9188431
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slabs_scanned 93775616
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kswapd_steal 291534428
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kswapd_inodesteal 29770874
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kswapd_low_wmark_hit_quickly 8756
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kswapd_high_wmark_hit_quickly 25439
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kswapd_skip_congestion_wait 0
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pageoutrun 505006
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allocstall 81496
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pgrotated 60620
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compact_blocks_moved 238196
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compact_pages_moved 6370588
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compact_pagemigrate_failed 0
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compact_stall 142092
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compact_fail 135220
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compact_success 6872
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htlb_buddy_alloc_success 0
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htlb_buddy_alloc_fail 0
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unevictable_pgs_culled 1531
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unevictable_pgs_scanned 0
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unevictable_pgs_rescued 5426
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unevictable_pgs_mlocked 6988
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unevictable_pgs_munlocked 6988
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unevictable_pgs_cleared 0
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unevictable_pgs_stranded 0
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unevictable_pgs_mlockfreed 0
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thp_fault_alloc 346219
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thp_fault_fallback 895453
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thp_collapse_alloc 24857
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thp_collapse_alloc_failed 102214
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thp_split 9817`
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const vmStatFile_Partial = `unevictable_pgs_culled 1531
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unevictable_pgs_scanned 0
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unevictable_pgs_rescued 5426
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unevictable_pgs_mlocked 6988
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unevictable_pgs_munlocked 6988
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unevictable_pgs_cleared 0
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unevictable_pgs_stranded 0
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unevictable_pgs_mlockfreed 0
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thp_fault_alloc 346219
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thp_fault_fallback 895453
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thp_collapse_alloc 24857
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thp_collapse_alloc_failed 102214
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thp_split 9817`
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// invalid thp_split measurement
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const vmStatFile_Invalid = `unevictable_pgs_culled 1531
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unevictable_pgs_scanned 0
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unevictable_pgs_rescued 5426
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unevictable_pgs_mlocked 6988
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unevictable_pgs_munlocked 6988
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unevictable_pgs_cleared 0
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unevictable_pgs_stranded 0
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unevictable_pgs_mlockfreed 0
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thp_fault_alloc 346219
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thp_fault_fallback 895453
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thp_collapse_alloc 24857
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thp_collapse_alloc_failed 102214
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thp_split abcd`
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func makeFakeVmStatFile(content []byte) string {
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tmpfile, err := ioutil.TempFile("", "kernel_vmstat_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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