== sanity test 124b: lru resize (performance test) ================================================================================= 12:12:55 (1787847175)
ldlm.namespaces.*mdc*.lru_size=0->400
ldlm.namespaces.*mdc*.lru_max_age=600000->3900s
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/disable_lru_resize
 - open/close 791 (time 1787847191.27 total 10.01 last 79.03)
 - open/close 1551 (time 1787847201.28 total 20.02 last 75.93)
 - open/close 2417 (time 1787847211.28 total 30.02 last 86.57)
 - open/close 3224 (time 1787847221.28 total 40.02 last 80.70)
 - open/close 3999 (time 1787847231.29 total 50.03 last 77.47)
 - open/close 4764 (time 1787847241.31 total 60.05 last 76.32)
 - open/close 5534 (time 1787847251.32 total 70.06 last 76.89)
 - open/close 6304 (time 1787847261.33 total 80.07 last 76.95)
 - open/close 7034 (time 1787847271.33 total 90.07 last 72.98)
 - open/close 7821 (time 1787847281.35 total 100.09 last 78.54)
total: 8000 open/close in 102.00 seconds: 78.43 ops/second
doing ls -la /mnt/lustre/d124b.sanity/disable_lru_resize 3 times
ls -la time: 159 seconds
lru_size = 400
400
 - unlinked 0 (time 1787847454 ; total 0 ; last 0)
total: 8000 unlinks in 109 seconds: 73.394493 unlinks/second
striped dir -i0 -c2 -H all_char  /mnt/lustre/d124b.sanity/enable_lru_resize
 - open/close 811 (time 1787847578.61 total 10.00 last 81.08)
 - open/close 1658 (time 1787847588.61 total 20.00 last 84.69)
 - open/close 2456 (time 1787847598.62 total 30.02 last 79.70)
 - open/close 3307 (time 1787847608.63 total 40.02 last 85.03)
 - open/close 4088 (time 1787847618.64 total 50.04 last 78.01)
 - open/close 4912 (time 1787847628.65 total 60.04 last 82.33)
 - open/close 5743 (time 1787847638.65 total 70.05 last 83.08)
 - open/close 6544 (time 1787847648.67 total 80.06 last 79.98)
 - open/close 7314 (time 1787847658.68 total 90.07 last 76.93)
total: 8000 open/close in 98.51 seconds: 81.21 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 50% faster with lru resize enabled
 - unlinked 0 (time 1787847766 ; total 0 ; last 0)
total: 8000 unlinks in 65 seconds: 123.076920 unlinks/second