== sanity test 124b: lru resize (performance test) ================================================================================= 14:41:10 (1784054470)
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 790 (time 1784054486.51 total 10.03 last 78.73)
 - open/close 1584 (time 1784054496.52 total 20.04 last 79.33)
 - open/close 2435 (time 1784054506.53 total 30.05 last 85.05)
 - open/close 3227 (time 1784054516.54 total 40.05 last 79.16)
 - open/close 4023 (time 1784054526.54 total 50.06 last 79.55)
 - open/close 4841 (time 1784054536.55 total 60.07 last 81.74)
 - open/close 5774 (time 1784054546.55 total 70.07 last 93.25)
 - open/close 6573 (time 1784054556.56 total 80.08 last 79.85)
 - open/close 7461 (time 1784054566.56 total 90.08 last 88.78)
total: 8000 open/close in 97.60 seconds: 81.96 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 172 seconds
lru_size = 400
400
 - unlinked 0 (time 1784054756 ; total 0 ; last 0)
total: 8000 unlinks in 103 seconds: 77.669907 unlinks/second
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 908 (time 1784054875.27 total 10.01 last 90.69)
 - open/close 1735 (time 1784054885.27 total 20.01 last 82.68)
 - open/close 2713 (time 1784054895.27 total 30.02 last 97.78)
 - open/close 3702 (time 1784054905.29 total 40.04 last 98.65)
 - open/close 4721 (time 1784054915.30 total 50.05 last 101.84)
 - open/close 5631 (time 1784054925.31 total 60.06 last 90.90)
 - open/close 6349 (time 1784054935.32 total 70.06 last 71.75)
 - open/close 7208 (time 1784054945.32 total 80.07 last 85.89)
 - open/close 7854 (time 1784054955.33 total 90.07 last 64.55)
total: 8000 open/close in 92.57 seconds: 86.42 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 97 seconds
lru_size = 4052
3955
ls -la is 43% faster with lru resize enabled
 - unlinked 0 (time 1784055075 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second