== sanity test 124b: lru resize (performance test) ================================================================================= 04:31:58 (1787041918)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
 - open/close 1132 (time 1787041932.00 total 10.01 last 113.12)
 - open/close 2282 (time 1787041942.00 total 20.01 last 114.99)
 - open/close 3440 (time 1787041952.00 total 30.01 last 115.79)
 - open/close 4666 (time 1787041962.00 total 40.01 last 122.59)
 - open/close 5852 (time 1787041972.01 total 50.02 last 118.53)
 - open/close 7000 (time 1787041982.01 total 60.02 last 114.78)
total: 8000 open/close in 67.43 seconds: 118.64 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 94 seconds
lru_size = 400
 - unlinked 0 (time 1787042088 ; total 0 ; last 0)
total: 8000 unlinks in 40 seconds: 200.000000 unlinks/second
 - open/close 1432 (time 1787042141.15 total 10.00 last 143.16)
 - open/close 2782 (time 1787042151.15 total 20.01 last 134.94)
 - open/close 4153 (time 1787042161.15 total 30.01 last 137.09)
 - open/close 5760 (time 1787042171.16 total 40.01 last 160.66)
 - open/close 7349 (time 1787042181.16 total 50.01 last 158.83)
total: 8000 open/close in 53.69 seconds: 149.00 ops/second
doing ls -la /mnt/lustre/d124b.sanity/enable_lru_resize 3 times
ls -la time: 46 seconds
lru_size = 8005
ls -la is 51% faster with lru resize enabled
 - unlinked 0 (time 1787042240 ; total 0 ; last 0)
total: 8000 unlinks in 62 seconds: 129.032257 unlinks/second