== sanity test 124b: lru resize (performance test) ================================================================================= 05:16:55 (1789031815)
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 807 (time 1789031830.72 total 10.00 last 80.68)
 - open/close 1573 (time 1789031840.72 total 20.00 last 76.59)
 - open/close 2377 (time 1789031850.74 total 30.02 last 80.28)
 - open/close 3216 (time 1789031860.74 total 40.02 last 83.90)
 - open/close 4069 (time 1789031870.75 total 50.03 last 85.24)
 - open/close 4912 (time 1789031880.76 total 60.04 last 84.19)
 - open/close 5779 (time 1789031890.77 total 70.05 last 86.63)
 - open/close 6442 (time 1789031900.79 total 80.07 last 66.16)
 - open/close 7334 (time 1789031910.79 total 90.07 last 89.17)
total: 8000 open/close in 98.18 seconds: 81.48 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 152 seconds
lru_size = 400
400
 - unlinked 0 (time 1789032081 ; total 0 ; last 0)
total: 8000 unlinks in 98 seconds: 81.632652 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 963 (time 1789032193.26 total 10.01 last 96.25)
 - open/close 1810 (time 1789032203.26 total 20.01 last 84.65)
 - open/close 2719 (time 1789032213.27 total 30.02 last 90.81)
 - open/close 3350 (time 1789032223.29 total 40.04 last 63.00)
 - open/close 4040 (time 1789032233.30 total 50.04 last 68.94)
 - open/close 4997 (time 1789032243.30 total 60.05 last 95.67)
 - open/close 5878 (time 1789032253.31 total 70.05 last 88.06)
 - open/close 6756 (time 1789032263.31 total 80.05 last 87.78)
 - open/close 7651 (time 1789032273.32 total 90.07 last 89.37)
total: 8000 open/close in 94.34 seconds: 84.80 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 85 seconds
lru_size = 4006
4001
ls -la is 44% faster with lru resize enabled
 - unlinked 0 (time 1789032384 ; total 0 ; last 0)
total: 8000 unlinks in 56 seconds: 142.857147 unlinks/second