== sanity test 124b: lru resize (performance test) ================================================================================= 17:35:11 (1789594511)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 777 (time 1789594526.48 total 10.00 last 77.66)
 - open/close 1427 (time 1789594536.48 total 20.01 last 64.99)
 - open/close 2168 (time 1789594546.48 total 30.01 last 74.09)
 - open/close 2852 (time 1789594556.49 total 40.01 last 68.37)
 - open/close 3579 (time 1789594566.50 total 50.02 last 72.63)
 - open/close 4227 (time 1789594576.50 total 60.02 last 64.78)
 - open/close 5034 (time 1789594586.51 total 70.03 last 80.65)
 - open/close 5760 (time 1789594596.51 total 80.03 last 72.59)
 - open/close 6420 (time 1789594606.51 total 90.04 last 65.98)
 - open/close 7076 (time 1789594616.52 total 100.05 last 65.52)
 - open/close 7800 (time 1789594626.53 total 110.05 last 72.38)
total: 8000 open/close in 113.15 seconds: 70.70 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 104 seconds
lru_size = 400
400
 - unlinked 0 (time 1789594747 ; total 0 ; last 0)
total: 8000 unlinks in 139 seconds: 57.553955 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 624 (time 1789594903.50 total 10.00 last 62.38)
 - open/close 1303 (time 1789594913.51 total 20.01 last 67.84)
 - open/close 1971 (time 1789594923.52 total 30.02 last 66.75)
 - open/close 2650 (time 1789594933.54 total 40.04 last 67.73)
 - open/close 3359 (time 1789594943.56 total 50.06 last 70.77)
 - open/close 4126 (time 1789594953.59 total 60.09 last 76.50)
 - open/close 4699 (time 1789594963.60 total 70.10 last 57.25)
 - open/close 5196 (time 1789594973.61 total 80.11 last 49.63)
 - open/close 5924 (time 1789594983.63 total 90.13 last 72.69)
 - open/close 6574 (time 1789594993.63 total 100.13 last 64.94)
 - open/close 7420 (time 1789595003.64 total 110.14 last 84.57)
total: 8000 open/close in 116.76 seconds: 68.52 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 87 seconds
lru_size = 4052
3955
ls -la is 16% faster with lru resize enabled
 - unlinked 0 (time 1789595117 ; total 0 ; last 0)
total: 8000 unlinks in 59 seconds: 135.593216 unlinks/second