== sanity test 124b: lru resize (performance test) ================================================================================= 18:19:08 (1778624348)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 1025 (time 1778624362.71 total 10.00 last 102.47)
 - open/close 1878 (time 1778624372.71 total 20.01 last 85.23)
 - open/close 2830 (time 1778624382.71 total 30.01 last 95.19)
 - open/close 3593 (time 1778624392.72 total 40.01 last 76.28)
 - open/close 4432 (time 1778624402.72 total 50.02 last 83.84)
 - open/close 5400 (time 1778624412.74 total 60.03 last 96.69)
 - open/close 6319 (time 1778624422.75 total 70.04 last 91.80)
 - open/close 7173 (time 1778624432.76 total 80.05 last 85.32)
total: 8000 open/close in 90.03 seconds: 88.86 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 154 seconds
lru_size = 400
400
 - unlinked 0 (time 1778624607 ; total 0 ; last 0)
total: 8000 unlinks in 87 seconds: 91.954025 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1023 (time 1778624708.62 total 10.01 last 102.22)
 - open/close 2009 (time 1778624718.63 total 20.01 last 98.55)
 - open/close 3074 (time 1778624728.63 total 30.02 last 106.41)
 - open/close 3740 (time 1778624738.64 total 40.02 last 66.57)
 - open/close 4552 (time 1778624748.64 total 50.03 last 81.19)
 - open/close 5306 (time 1778624758.64 total 60.03 last 75.38)
 - open/close 5939 (time 1778624768.65 total 70.04 last 63.24)
 - open/close 6657 (time 1778624778.67 total 80.06 last 71.64)
 - open/close 7421 (time 1778624788.68 total 90.07 last 76.37)
total: 8000 open/close in 96.52 seconds: 82.88 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 91 seconds
lru_size = 4052
3955
ls -la is 40% faster with lru resize enabled
 - unlinked 0 (time 1778624909 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second