From: bharath.ram...@hp.com The issue you linked below is one of the problems we identified (iSER discovery issues running ARM initiator against x86 target). The other issue is that we are getting very poor iSER Random I/O throughput and latency on an ARM cartridge (m400) compared to an x86 cartridge (m710). There’s also a gap in the vanilla iSCSI random and sequential I/O performance, which needs to be investigated. We’ve been working both these issues through Mellanox. Anders m710 Single Client – 4KiB IO Patterns on a logical volume through iSCSI from HP ProLiant SL4540 Server. 1 HP ProLiant m710 Node Bandwidth(MB/s) IOPS (in Thousands = 1K) Avg. Latency(msec) Random Read (100%) 61 16 62.498 Random Read Write Mix (70:30) 52 13 72.855 Random Write (100%) 41 11 90.644 Sequential Read (100%) 803 206 4.656 Sequential Read Write Mix(70:30) 326 83 11.755 Sequential Write (100%) 434 111 8.672 Single Client – 4KiB IO Patterns on one logical volume through iSER from HP ProLiant SL4540 Server. 1 HP ProLiant m710 Node Bandwidth(MB/s) IOPS (in Thousands = 1K) Avg. Latency(msec) Random Read (100%) 168.178 43.0535 3.707 Random Read Write Mix (70:30) 85.077 21.779 29.418 Random Write (100%) 114.460 29.301 21.840 Sequential Read (100%) 1069.6 273.809 2.303 Sequential Read Write Mix(70:30) 828.85 212.184 3.111 Sequential Write (100%) 1066.6 273.032 2.328 McDivitt m400 Single Client – 4KiB IO Patterns on a logical volume of m400 through iSCSI from HP ProLiant SL4540 Server 1 HP ProLiant m400 Node Bandwidth(MB/s) IOPS (in Thousands = 1K) Avg. Latency(msec) Random Read (100%) 41.632 10.657 90.062 Random Read Write Mix (60:40) 22.595 5.783 203.204 Random Write (100%) 17.521 4.485 214 Sequential Read (100%) 585.663 149.929 6.401 Sequential Read Write Mix(60:40) 205.923 52.715 22.245 Sequential Write (100%) 307.691 78.769 12.184 Single Client – 4KiB IO Patterns on a logical volume of m400 through iSER from HP ProLiant SL4540 Server. 1 HP ProLiant m400 Node Bandwidth(MB/s) IOPS (in Thousands = 1K) Avg. Latency(msec) Random Read (100%) 39.737 10.172 94.36 Random Read Write Mix (60:40) 25.265 6.466 181.659 Random Write (100%) 17.776 4.55 210.869 Sequential Read (100%) 1013.5 259.442 3.699 Sequential Read Write Mix(60:40) 775.645 198.564 5.846 Sequential Write (100%) 1053.8 269.756 3.366 Cheers, Bharath
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1401575 Title: HP Moonshot/McDivitt: iSER compatibility issues between x86 OFED target and McDivitt ARM64 client To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/open-iscsi/+bug/1401575/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
