== sanity test 124b: lru resize (performance test) ================================================================================= 00:36:47 (1789792607)
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 834 (time 1789792621.53 total 10.00 last 83.38)
 - open/close 1726 (time 1789792631.55 total 20.02 last 89.02)
 - open/close 2544 (time 1789792641.56 total 30.03 last 81.74)
 - open/close 3398 (time 1789792651.56 total 40.03 last 85.37)
 - open/close 4262 (time 1789792661.57 total 50.04 last 86.34)
 - open/close 5052 (time 1789792671.57 total 60.05 last 78.95)
 - open/close 5878 (time 1789792681.58 total 70.05 last 82.54)
 - open/close 6700 (time 1789792691.59 total 80.06 last 82.15)
 - open/close 7521 (time 1789792701.60 total 90.08 last 81.95)
total: 8000 open/close in 95.56 seconds: 83.71 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 145 seconds
lru_size = 400
400
 - unlinked 0 (time 1789792861 ; total 0 ; last 0)
total: 8000 unlinks in 94 seconds: 85.106384 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 835 (time 1789792970.25 total 10.00 last 83.47)
 - open/close 1729 (time 1789792980.26 total 20.01 last 89.36)
 - open/close 2539 (time 1789792990.27 total 30.02 last 80.94)
 - open/close 3355 (time 1789793000.27 total 40.02 last 81.53)
 - open/close 4235 (time 1789793010.28 total 50.03 last 87.95)
 - open/close 5038 (time 1789793020.28 total 60.03 last 80.29)
 - open/close 5904 (time 1789793030.29 total 70.04 last 86.55)
 - open/close 6755 (time 1789793040.29 total 80.04 last 85.06)
 - open/close 7615 (time 1789793050.29 total 90.04 last 85.98)
total: 8000 open/close in 94.53 seconds: 84.62 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 71 seconds
lru_size = 4006
4001
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1789793142 ; total 0 ; last 0)
total: 8000 unlinks in 61 seconds: 131.147537 unlinks/second