== sanity test 124b: lru resize (performance test) ================================================================================= 03:34:06 (1788939246)
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 698 (time 1788939260.96 total 10.00 last 69.79)
 - open/close 1423 (time 1788939270.96 total 20.01 last 72.47)
 - open/close 2223 (time 1788939280.97 total 30.01 last 79.99)
 - open/close 3067 (time 1788939290.97 total 40.02 last 84.32)
 - open/close 3949 (time 1788939300.98 total 50.02 last 88.14)
 - open/close 4772 (time 1788939310.99 total 60.03 last 82.23)
 - open/close 5540 (time 1788939321.00 total 70.04 last 76.71)
 - open/close 6276 (time 1788939331.01 total 80.05 last 73.58)
 - open/close 7213 (time 1788939341.01 total 90.05 last 93.67)
total: 8000 open/close in 98.01 seconds: 81.62 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 162 seconds
lru_size = 400
400
 - unlinked 0 (time 1788939521 ; total 0 ; last 0)
total: 8000 unlinks in 105 seconds: 76.190475 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 773 (time 1788939643.68 total 10.01 last 77.21)
 - open/close 1783 (time 1788939653.69 total 20.02 last 100.92)
 - open/close 2462 (time 1788939663.69 total 30.02 last 67.89)
 - open/close 3042 (time 1788939673.71 total 40.04 last 57.87)
 - open/close 3533 (time 1788939683.71 total 50.05 last 49.09)
 - open/close 4142 (time 1788939693.71 total 60.05 last 60.89)
 - open/close 4880 (time 1788939703.72 total 70.06 last 73.74)
 - open/close 5617 (time 1788939713.73 total 80.06 last 73.65)
 - open/close 6593 (time 1788939723.74 total 90.07 last 97.52)
 - open/close 7572 (time 1788939733.75 total 100.08 last 97.78)
total: 8000 open/close in 104.13 seconds: 76.83 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 83 seconds
lru_size = 4006
4001
ls -la is 48% faster with lru resize enabled
 - unlinked 0 (time 1788939842 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second