== sanity test 124b: lru resize (performance test) ================================================================================= 19:23:28 (1781220208)
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 686 (time 1781220224.29 total 10.02 last 68.47)
 - open/close 1454 (time 1781220234.30 total 20.03 last 76.76)
 - open/close 2236 (time 1781220244.30 total 30.03 last 78.19)
 - open/close 2998 (time 1781220254.31 total 40.04 last 76.13)
 - open/close 3845 (time 1781220264.32 total 50.04 last 84.64)
 - open/close 4645 (time 1781220274.33 total 60.05 last 79.94)
 - open/close 5461 (time 1781220284.33 total 70.06 last 81.55)
 - open/close 6288 (time 1781220294.35 total 80.08 last 82.53)
 - open/close 7018 (time 1781220304.36 total 90.08 last 72.95)
 - open/close 7895 (time 1781220314.37 total 100.09 last 87.64)
total: 8000 open/close in 101.16 seconds: 79.09 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 168 seconds
lru_size = 400
400
 - unlinked 0 (time 1781220494 ; total 0 ; last 0)
total: 8000 unlinks in 99 seconds: 80.808083 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 773 (time 1781220609.64 total 10.00 last 77.30)
 - open/close 1630 (time 1781220619.65 total 20.01 last 85.60)
 - open/close 2375 (time 1781220629.66 total 30.02 last 74.43)
 - open/close 3197 (time 1781220639.67 total 40.03 last 82.14)
 - open/close 4036 (time 1781220649.69 total 50.04 last 83.78)
 - open/close 4812 (time 1781220659.69 total 60.05 last 77.58)
 - open/close 5643 (time 1781220669.70 total 70.06 last 82.96)
 - open/close 6505 (time 1781220679.72 total 80.08 last 86.09)
 - open/close 7362 (time 1781220689.72 total 90.08 last 85.65)
total: 8000 open/close in 97.40 seconds: 82.13 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 89 seconds
lru_size = 4006
4001
ls -la is 47% faster with lru resize enabled
 - unlinked 0 (time 1781220810 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second