== sanity test 124b: lru resize (performance test) ================================================================================= 19:07:02 (1790982422)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 765 (time 1790982436.68 total 10.01 last 76.42)
 - open/close 1544 (time 1790982446.68 total 20.01 last 77.89)
 - open/close 2296 (time 1790982456.68 total 30.01 last 75.19)
 - open/close 3140 (time 1790982466.69 total 40.02 last 84.32)
 - open/close 3959 (time 1790982476.70 total 50.03 last 81.82)
 - open/close 4749 (time 1790982486.71 total 60.04 last 78.93)
 - open/close 5559 (time 1790982496.72 total 70.05 last 80.90)
 - open/close 6398 (time 1790982506.72 total 80.05 last 83.89)
 - open/close 7185 (time 1790982516.73 total 90.07 last 78.59)
total: 8000 open/close in 99.98 seconds: 80.01 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 144 seconds
lru_size = 400
400
 - unlinked 0 (time 1790982680 ; total 0 ; last 0)
total: 8000 unlinks in 100 seconds: 80.000000 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 820 (time 1790982795.20 total 10.02 last 81.87)
 - open/close 1640 (time 1790982805.21 total 20.02 last 81.93)
 - open/close 2449 (time 1790982815.21 total 30.02 last 80.89)
 - open/close 3295 (time 1790982825.24 total 40.06 last 84.32)
 - open/close 4125 (time 1790982835.25 total 50.06 last 82.98)
 - open/close 4985 (time 1790982845.26 total 60.08 last 85.88)
 - open/close 5839 (time 1790982855.26 total 70.08 last 85.37)
 - open/close 6703 (time 1790982865.27 total 80.09 last 86.33)
 - open/close 7610 (time 1790982875.27 total 90.09 last 90.69)
total: 8000 open/close in 94.92 seconds: 84.28 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 40% faster with lru resize enabled
 - unlinked 0 (time 1790982985 ; total 0 ; last 0)
total: 8000 unlinks in 57 seconds: 140.350876 unlinks/second