== sanityn test 77k: check TBF policy with UID/GID/JobID/OPCode expression ========================================================== 00:03:57 (1764738237) ost.OSS.ost_io.nrs_policies=tbf ost.OSS.ost_io.nrs_tbf_rule=start ext_w jobid={dd.500}&opcode={ost_write} rate=20 ost.OSS.ost_io.nrs_tbf_rule=start ext_r jobid={dd.500}&opcode={ost_read} rate=10 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.256689 s, 65.4 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0348858 s, 30.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.066211 s, 15.8 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0755905 s, 13.9 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0481868 s, 21.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0865917 s, 12.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0686251 s, 15.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0865253 s, 12.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0838445 s, 12.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0828125 s, 12.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0864612 s, 12.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.105385 s, 9.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0792508 s, 13.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0874837 s, 12.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0960379 s, 10.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.111281 s, 9.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.110758 s, 9.5 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0184898 s, 56.7 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0174082 s, 60.2 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0148783 s, 70.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0175328 s, 59.8 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0163636 s, 64.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0169997 s, 61.7 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00443607 s, 236 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0186913 s, 56.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0176155 s, 59.5 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0131095 s, 80.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0193406 s, 54.2 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0204544 s, 51.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0047381 s, 221 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00403287 s, 260 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0058463 s, 179 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00894606 s, 117 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 10 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 4.95044 s, 21.2 MB/s Write runtime is 6 s, speed is 16.666666 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.73855 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_w ost.OSS.ost_io.nrs_tbf_rule=stop ext_r ost.OSS.ost_io.nrs_tbf_rule=start ext_w nid={0@lo 192.168.204.16@tcp}&opcode={ost_write} rate=20 ost.OSS.ost_io.nrs_tbf_rule=start ext_r nid={0@lo 192.168.204.16@tcp}&opcode={ost_read} rate=10 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.23716 s, 70.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0235808 s, 44.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0228475 s, 45.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0240878 s, 43.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0483557 s, 21.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0432847 s, 24.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0777178 s, 13.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0720595 s, 14.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0698246 s, 15.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0728874 s, 14.4 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.079059 s, 13.3 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0808289 s, 13.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0912351 s, 11.5 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.249839 s, 4.2 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.26785 s, 3.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.31827 s, 3.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.319754 s, 3.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0121981 s, 86.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0167078 s, 62.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0171714 s, 61.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0180966 s, 57.9 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0176586 s, 59.4 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0178582 s, 58.7 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0207271 s, 50.6 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00355549 s, 295 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0179051 s, 58.6 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0226005 s, 46.4 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0099951 s, 105 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0110747 s, 94.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.022536 s, 46.5 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0150694 s, 69.6 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0154167 s, 68.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00584259 s, 179 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 10 Verify the write rate is under TBF control 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 4.99559 s, 21.0 MB/s Write runtime is 6 s, speed is 16.666666 IOPS Verify the read rate is under TBF control 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.73051 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_w ost.OSS.ost_io.nrs_tbf_rule=stop ext_r ost.OSS.ost_io.nrs_tbf_rule=start ext nid={0@lo 192.168.204.16@tcp}&jobid={dd.500} rate=20 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.242761 s, 69.1 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.038586 s, 27.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0348088 s, 30.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.121645 s, 8.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.102451 s, 10.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.133174 s, 7.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.132767 s, 7.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.129889 s, 8.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.157056 s, 6.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.150167 s, 7.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.159314 s, 6.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.155215 s, 6.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.162588 s, 6.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.158809 s, 6.6 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.184674 s, 5.7 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.15608 s, 6.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.172796 s, 6.1 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0141983 s, 73.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0138283 s, 75.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0112806 s, 93.0 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0169294 s, 61.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0188397 s, 55.7 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0163999 s, 63.9 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0153905 s, 68.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0190398 s, 55.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0182557 s, 57.4 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00697429 s, 150 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0160879 s, 65.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00353992 s, 296 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00763748 s, 137 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00369965 s, 283 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00369548 s, 284 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0272178 s, 38.5 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 20 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 4.94521 s, 21.2 MB/s Write runtime is 6 s, speed is 16.666666 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 4.88115 s, 21.5 MB/s Read runtime is 6 s, speed is 16.666666 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext ost.OSS.ost_io.nrs_tbf_rule=start ext_a jobid={dd.500},opcode={ost_write} rate=20 ost.OSS.ost_io.nrs_tbf_rule=start ext_b jobid={dd.500},opcode={ost_read} rate=10 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.44401 s, 37.8 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0245177 s, 42.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0406041 s, 25.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0620282 s, 16.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0510238 s, 20.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0677358 s, 15.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0673708 s, 15.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0918635 s, 11.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0698811 s, 15.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0738565 s, 14.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0992628 s, 10.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0817994 s, 12.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0782265 s, 13.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.216226 s, 4.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.209014 s, 5.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.314338 s, 3.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.320296 s, 3.3 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0177857 s, 59.0 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0186364 s, 56.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0266342 s, 39.4 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.02479 s, 42.3 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0271341 s, 38.6 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0296129 s, 35.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0223936 s, 46.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0240298 s, 43.6 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0312754 s, 33.5 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0366755 s, 28.6 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00483901 s, 217 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00551912 s, 190 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0137194 s, 76.4 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00791772 s, 132 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00954182 s, 110 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00536523 s, 195 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 10, read rate: 10 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.78382 s, 10.7 MB/s Write runtime is 11 s, speed is 9.090909 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.73605 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 10 Verify the write rate is under TBF control 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 4.94547 s, 21.2 MB/s Write runtime is 6 s, speed is 16.666666 IOPS Verify the read rate is under TBF control 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.74136 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_a ost.OSS.ost_io.nrs_tbf_rule=stop ext_b ost.OSS.ost_io.nrs_tbf_rule=start ext_ug uid={500}&gid={500} rate=5 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.85221 s, 19.7 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0504399 s, 20.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0286923 s, 36.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0522969 s, 20.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0433692 s, 24.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0619027 s, 16.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0521736 s, 20.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0559196 s, 18.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0492982 s, 21.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.152872 s, 6.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.19761 s, 5.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.222644 s, 4.7 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.199762 s, 5.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.212661 s, 4.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.218684 s, 4.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.232274 s, 4.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.217099 s, 4.8 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00817246 s, 128 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0172013 s, 61.0 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0158304 s, 66.2 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0216235 s, 48.5 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.019243 s, 54.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0139276 s, 75.3 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0171262 s, 61.2 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00370752 s, 283 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0171933 s, 61.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0214151 s, 49.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00839063 s, 125 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00396688 s, 264 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00418103 s, 251 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0154704 s, 67.8 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0236512 s, 44.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00272992 s, 384 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 5, read rate: 5 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 19.6613 s, 5.3 MB/s Write runtime is 21 s, speed is 4.761904 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 19.4838 s, 5.4 MB/s Read runtime is 20 s, speed is 5.000000 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_ug ost.OSS.ost_io.nrs_tbf_rule=start ext_uw uid={500}&opcode={ost_write} rate=20 ost.OSS.ost_io.nrs_tbf_rule=start ext_ur uid={500}&opcode={ost_read} rate=10 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.23825 s, 70.4 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0234722 s, 44.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.041619 s, 25.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0511127 s, 20.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0378322 s, 27.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0594707 s, 17.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0667533 s, 15.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0795739 s, 13.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.079528 s, 13.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0832614 s, 12.6 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0868228 s, 12.1 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0855336 s, 12.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0920996 s, 11.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.10632 s, 9.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.100672 s, 10.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0907407 s, 11.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.100897 s, 10.4 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00820369 s, 128 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0116634 s, 89.9 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0116985 s, 89.6 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0180332 s, 58.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.012908 s, 81.2 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0182767 s, 57.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.012719 s, 82.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0268725 s, 39.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00707058 s, 148 MB/s1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0203893 s, 51.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0213303 s, 49.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0090223 s, 116 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.020998 s, 49.9 MB/s1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0050802 s, 206 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00596126 s, 176 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00282835 s, 371 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 10 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 5.0227 s, 20.9 MB/s Write runtime is 6 s, speed is 16.666666 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.75155 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_uw ost.OSS.ost_io.nrs_tbf_rule=stop ext_ur ost.OSS.ost_io.nrs_tbf_rule=start ext_a uid={500},opcode={ost_write} rate=20 ost.OSS.ost_io.nrs_tbf_rule=start ext_b uid={500},opcode={ost_read} rate=10 running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet] [bs=1M] [count=16] 16+0 records in 16+0 records out 16777216 bytes (17 MB, 16 MiB) copied, 0.449071 s, 37.4 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_w] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0386548 s, 27.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0304288 s, 34.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0435319 s, 24.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0567126 s, 18.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0384043 s, 27.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.120393 s, 8.7 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.129955 s, 8.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.106688 s, 9.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.114889 s, 9.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.189578 s, 5.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.167859 s, 6.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.195526 s, 5.4 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.264417 s, 4.0 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.276162 s, 3.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.325409 s, 3.2 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.313417 s, 3.3 MB/s running as uid/gid/euid/egid 500/500/500/500, groups: 500 [declare] [-a] [pids_r] execvp fails running declare (13): Permission denied 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0120859 s, 86.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0158741 s, 66.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0177406 s, 59.1 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0153197 s, 68.4 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0172454 s, 60.8 MB/s 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00980377 s, 107 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0130184 s, 80.5 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0181189 s, 57.9 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0250645 s, 41.8 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00392085 s, 267 MB/s1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0259947 s, 40.3 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00825878 s, 127 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00974393 s, 108 MB/s 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00757205 s, 138 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.0258895 s, 40.5 MB/s 1+0 records in 1+0 records out 1048576 bytes (1.0 MB, 1.0 MiB) copied, 0.00199137 s, 527 MB/s removed '/mnt/lustre/d77k.sanityn/nrs_r_oleg416-client.virtnet' removed '/mnt/lustre/d77k.sanityn/nrs_w_oleg416-client.virtnet' removed directory '/mnt/lustre/d77k.sanityn' cpu_npartitions on ost1 is 1 Limited write rate: 10, read rate: 10 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.81011 s, 10.7 MB/s Write runtime is 11 s, speed is 9.090909 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.76424 s, 10.7 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete cpu_npartitions on ost1 is 1 Limited write rate: 20, read rate: 10 Verify the write rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/dev/zero] [of=/mnt/lustre/d77k.sanityn/tbf] [bs=1M] [count=100] [oflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.79036 s, 10.7 MB/s Write runtime is 10 s, speed is 10.000000 IOPS Verify the read rate is under TBF control running as uid/gid/euid/egid 500/500/500/500, groups: 500 [dd] [if=/mnt/lustre/d77k.sanityn/tbf] [of=/dev/null] [bs=1M] [count=100] [iflag=direct] 100+0 records in 100+0 records out 104857600 bytes (105 MB, 100 MiB) copied, 9.74771 s, 10.8 MB/s Read runtime is 11 s, speed is 9.090909 IOPS cleanup_tbf /mnt/lustre/d77k.sanityn sleep 5 for ZFS MDS sleep 5 for ZFS OST Waiting for MDT destroys to complete ost.OSS.ost_io.nrs_tbf_rule=stop ext_a ost.OSS.ost_io.nrs_tbf_rule=stop ext_b ost.OSS.ost_io.nrs_policies=fifo