== sanity test 124b: lru resize (performance test) ================================================================================= 16:18:04 (1777061884)
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 1115 (time 1777061898.44 total 10.00 last 111.49)
 - open/close 2190 (time 1777061908.44 total 20.01 last 107.42)
 - open/close 3151 (time 1777061918.45 total 30.01 last 96.07)
 - open/close 4264 (time 1777061928.46 total 40.02 last 111.21)
 - open/close 5250 (time 1777061938.46 total 50.02 last 98.58)
 - open/close 6328 (time 1777061948.46 total 60.03 last 107.76)
 - open/close 7316 (time 1777061958.48 total 70.04 last 98.65)
total: 8000 open/close in 76.48 seconds: 104.60 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 169 seconds
lru_size = 400
400
 - unlinked 0 (time 1777062142 ; total 0 ; last 0)
total: 8000 unlinks in 77 seconds: 103.896103 unlinks/second
striped dir -i0 -c2 -H crush  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1365 (time 1777062233.35 total 10.01 last 136.39)
 - open/close 2467 (time 1777062243.35 total 20.01 last 110.18)
 - open/close 3534 (time 1777062253.36 total 30.02 last 106.64)
 - open/close 4763 (time 1777062263.36 total 40.02 last 122.86)
 - open/close 5962 (time 1777062273.36 total 50.02 last 119.87)
 - open/close 7220 (time 1777062283.36 total 60.02 last 125.79)
total: 8000 open/close in 66.72 seconds: 119.90 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 109 seconds
lru_size = 4052
3955
ls -la is 35% faster with lru resize enabled
 - unlinked 0 (time 1777062416 ; total 0 ; last 0)
total: 8000 unlinks in 34 seconds: 235.294113 unlinks/second