== sanity test 124b: lru resize (performance test) ================================================================================= 15:44:05 (1786045445)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 686 (time 1786045461.81 total 10.01 last 68.55)
 - open/close 1268 (time 1786045471.81 total 20.01 last 58.18)
 - open/close 1908 (time 1786045481.82 total 30.02 last 63.96)
 - open/close 2468 (time 1786045491.82 total 40.02 last 55.98)
 - open/close 3077 (time 1786045501.83 total 50.03 last 60.85)
 - open/close 3624 (time 1786045511.85 total 60.04 last 54.63)
 - open/close 4188 (time 1786045521.87 total 70.06 last 56.27)
 - open/close 4704 (time 1786045531.88 total 80.07 last 51.55)
 - open/close 5168 (time 1786045541.88 total 90.08 last 46.37)
 - open/close 5904 (time 1786045551.90 total 100.09 last 73.51)
 - open/close 6511 (time 1786045561.90 total 110.10 last 60.67)
 - open/close 6992 (time 1786045571.94 total 120.13 last 47.93)
 - open/close 7718 (time 1786045581.95 total 130.15 last 72.51)
total: 8000 open/close in 134.88 seconds: 59.31 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 122 seconds
lru_size = 400
400
 - unlinked 0 (time 1786045721 ; total 0 ; last 0)
total: 8000 unlinks in 128 seconds: 62.500000 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 343 (time 1786045871.07 total 10.02 last 34.25)
 - open/close 785 (time 1786045881.10 total 20.04 last 44.10)
 - open/close 1341 (time 1786045891.10 total 30.04 last 55.59)
 - open/close 1839 (time 1786045901.10 total 40.05 last 49.78)
 - open/close 2484 (time 1786045911.16 total 50.10 last 64.13)
 - open/close 3078 (time 1786045921.17 total 60.11 last 59.35)
 - open/close 3669 (time 1786045931.17 total 70.11 last 59.10)
 - open/close 4378 (time 1786045941.18 total 80.12 last 70.83)
 - open/close 4882 (time 1786045951.22 total 90.16 last 50.20)
 - open/close 5237 (time 1786045961.23 total 100.18 last 35.44)
 - open/close 5551 (time 1786045971.27 total 110.21 last 31.30)
 - open/close 6014 (time 1786045981.29 total 120.23 last 46.21)
 - open/close 6402 (time 1786045991.29 total 130.23 last 38.80)
 - open/close 6936 (time 1786046001.29 total 140.23 last 53.39)
 - open/close 7454 (time 1786046011.29 total 150.23 last 51.78)
total: 8000 open/close in 158.31 seconds: 50.53 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 132 seconds
lru_size = 4052
3955
ls -la is 8% slower with lru resize enabled
 - unlinked 0 (time 1786046181 ; total 0 ; last 0)
total: 8000 unlinks in 73 seconds: 109.589043 unlinks/second