== sanity test 124b: lru resize (performance test) ================================================================================= 01:24:45 (1787376285)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 936 (time 1787376300.19 total 10.01 last 93.53)
 - open/close 1706 (time 1787376310.21 total 20.02 last 76.88)
 - open/close 2517 (time 1787376320.21 total 30.02 last 81.09)
 - open/close 3419 (time 1787376330.22 total 40.03 last 90.14)
 - open/close 4290 (time 1787376340.22 total 50.04 last 87.07)
 - open/close 5205 (time 1787376350.22 total 60.04 last 91.46)
 - open/close 6168 (time 1787376360.23 total 70.04 last 96.26)
 - open/close 7111 (time 1787376370.24 total 80.06 last 94.17)
total: 8000 open/close in 89.40 seconds: 89.49 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 141 seconds
lru_size = 400
400
 - unlinked 0 (time 1787376528 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 906 (time 1787376633.58 total 10.01 last 90.51)
 - open/close 1770 (time 1787376643.58 total 20.01 last 86.39)
 - open/close 2714 (time 1787376653.59 total 30.02 last 94.34)
 - open/close 3625 (time 1787376663.60 total 40.02 last 91.05)
 - open/close 4474 (time 1787376673.60 total 50.02 last 84.88)
 - open/close 5219 (time 1787376683.60 total 60.03 last 74.45)
 - open/close 6106 (time 1787376693.62 total 70.05 last 88.53)
 - open/close 6830 (time 1787376703.63 total 80.05 last 72.38)
 - open/close 7721 (time 1787376713.63 total 90.06 last 89.07)
total: 8000 open/close in 93.28 seconds: 85.76 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4052
3955
ls -la is 36% faster with lru resize enabled
 - unlinked 0 (time 1787376829 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second