== sanity test 124b: lru resize (performance test) ================================================================================= 13:18:20 (1788801500)
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 747 (time 1788801516.07 total 10.00 last 74.69)
 - open/close 1470 (time 1788801526.10 total 20.03 last 72.09)
 - open/close 2206 (time 1788801536.11 total 30.04 last 73.51)
 - open/close 2923 (time 1788801546.12 total 40.05 last 71.65)
 - open/close 3725 (time 1788801556.12 total 50.06 last 80.16)
 - open/close 4576 (time 1788801566.14 total 60.07 last 85.00)
 - open/close 5449 (time 1788801576.14 total 70.07 last 87.25)
 - open/close 6327 (time 1788801586.15 total 80.08 last 87.73)
 - open/close 7177 (time 1788801596.16 total 90.09 last 84.91)
total: 8000 open/close in 99.63 seconds: 80.29 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 147 seconds
lru_size = 400
400
 - unlinked 0 (time 1788801761 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 887 (time 1788801876.41 total 10.00 last 88.69)
 - open/close 1654 (time 1788801886.43 total 20.02 last 76.57)
 - open/close 2540 (time 1788801896.44 total 30.03 last 88.53)
 - open/close 3398 (time 1788801906.44 total 40.03 last 85.76)
 - open/close 4252 (time 1788801916.44 total 50.03 last 85.38)
 - open/close 5162 (time 1788801926.44 total 60.03 last 90.99)
 - open/close 6073 (time 1788801936.45 total 70.04 last 91.05)
 - open/close 6892 (time 1788801946.46 total 80.05 last 81.83)
 - open/close 7588 (time 1788801956.46 total 90.05 last 69.59)
total: 8000 open/close in 95.66 seconds: 83.63 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 78 seconds
lru_size = 4006
4001
ls -la is 46% faster with lru resize enabled
 - unlinked 0 (time 1788802056 ; total 0 ; last 0)
total: 8000 unlinks in 58 seconds: 137.931030 unlinks/second