== sanity test 124b: lru resize (performance test) ================================================================================= 04:43:25 (1787042605)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H crush2  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 899 (time 1787042618.71 total 10.01 last 89.78)
 - open/close 1740 (time 1787042628.72 total 20.02 last 84.03)
 - open/close 2554 (time 1787042638.73 total 30.03 last 81.34)
 - open/close 3446 (time 1787042648.74 total 40.04 last 89.12)
 - open/close 4308 (time 1787042658.74 total 50.04 last 86.15)
 - open/close 5111 (time 1787042668.75 total 60.05 last 80.26)
 - open/close 5948 (time 1787042678.76 total 70.06 last 83.61)
 - open/close 6831 (time 1787042688.76 total 80.06 last 88.29)
 - open/close 7685 (time 1787042698.76 total 90.07 last 85.35)
total: 8000 open/close in 93.83 seconds: 85.26 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 127 seconds
lru_size = 400
400
 - unlinked 0 (time 1787042837 ; total 0 ; last 0)
total: 8000 unlinks in 90 seconds: 88.888885 unlinks/second
striped dir -i0 -c2 -H fnv_1a_64  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 1119 (time 1787042940.37 total 10.00 last 111.84)
 - open/close 2137 (time 1787042950.37 total 20.01 last 101.76)
 - open/close 3166 (time 1787042960.37 total 30.01 last 102.87)
 - open/close 4187 (time 1787042970.38 total 40.02 last 101.99)
 - open/close 5077 (time 1787042980.39 total 50.03 last 88.95)
 - open/close 5631 (time 1787042990.42 total 60.06 last 55.25)
 - open/close 6197 (time 1787043000.42 total 70.06 last 56.57)
 - open/close 6676 (time 1787043010.43 total 80.07 last 47.87)
 - open/close 7276 (time 1787043020.44 total 90.08 last 59.94)
 - open/close 7849 (time 1787043030.47 total 100.11 last 57.12)
total: 8000 open/close in 102.80 seconds: 77.82 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 90 seconds
lru_size = 4006
4001
ls -la is 29% faster with lru resize enabled
 - unlinked 0 (time 1787043143 ; total 0 ; last 0)
total: 8000 unlinks in 64 seconds: 125.000000 unlinks/second