test kernel feedback pveperf

[BitRausch]

hi dietmar+tom,

just testing your latest kernel and noticed that pveperf is showing different numbers:

pveperf

CPU BOGOMIPS:      42139.81
REGEX/SECOND:      1204265
HD SIZE:           39.37 GB (/dev/mapper/pve-root)
BUFFERED READS:    234.62 MB/sec
AVERAGE SEEK TIME: 14.22 ms
FSYNCS/SECOND:     98.84
DNS EXT:           1094.27 ms
DNS INT:           1.10 ms (fritz.box)

pveversion

pve-manager: 1.6-4 (pve-manager/1.6/5229)
running kernel: 2.6.35-1-pve
proxmox-ve-2.6.35: 1.6-2
pve-kernel-2.6.32-3-pve: 2.6.32-14
pve-kernel-2.6.35-1-pve: 2.6.35-2
qemu-server: 1.1-19
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-14
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-8
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-2
ksm-control-daemon: 1.0-4

Usually FSYNCS/SECOND is above 3K on my system and BUFFERED READS above 260.

System Specs:
AMD 1055T
Adaptec 5405 writeback enabled
4 x SATA 500GB in RAID 10
8 GB RAM
NO VM's running.

I would love to give you comparison numbers but not sure how to revert back the complete changes in order to do that.

Kind regards

 

[BitRausch]

Some other numbers after installing the pve-kernel-2.6.32-4-pve

pveversion:

pve-manager: 1.6-4 (pve-manager/1.6/5229)
running kernel: 2.6.32-4-pve
proxmox-ve-2.6.32: 1.6-21
pve-kernel-2.6.32-3-pve: 2.6.32-14
pve-kernel-2.6.32-4-pve: 2.6.32-21
pve-kernel-2.6.35-1-pve: 2.6.35-2
qemu-server: 1.1-19
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-14
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-8
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-2
ksm-control-daemon: 1.0-4

pveperf:

CPU BOGOMIPS:      42141.76
REGEX/SECOND:      1106365
HD SIZE:           39.37 GB (/dev/mapper/pve-root)
BUFFERED READS:    247.94 MB/sec
AVERAGE SEEK TIME: 10.38 ms
FSYNCS/SECOND:     1519.66
DNS EXT:           1102.49 ms
DNS INT:           1.09 ms (fritz.box)

kind regards

 

[tom]

thanks for reporting!

 

[dietmar]

I just uploaded a fix. Please can you test?

ftp://download.proxmox.com/debian/d...64/pve-kernel-2.6.35-1-pve_2.6.35-3_amd64.deb

pve-kernel-2.6.35 (2.6.35-3) unstable; urgency=low

* fix fsync performance: sched-fix.diff

* strip debug symbols

* enable CONFIG_BLK_CGROUP

 

[BitRausch]

Thx Dietmar,

here the results after applying the new kernel:

pveversion

pve-manager: 1.6-4 (pve-manager/1.6/5229)
running kernel: 2.6.35-1-pve
proxmox-ve-2.6.35: 1.6-3
pve-kernel-2.6.32-4-pve: 2.6.32-21
pve-kernel-2.6.35-1-pve: 2.6.35-3
qemu-server: 1.1-19
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-14
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-8
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-2
ksm-control-daemon: 1.0-4

pveperf:

CPU BOGOMIPS:      42141.55
REGEX/SECOND:      1191201
HD SIZE:           39.37 GB (/dev/mapper/pve-root)
BUFFERED READS:    266.30 MB/sec
AVERAGE SEEK TIME: 12.08 ms
FSYNCS/SECOND:     1593.75
DNS EXT:           1130.10 ms
DNS INT:           1.11 ms (fritz.box)

FSYNCS/SECOND is still lower then I remember...but way better the the first version.
(I repeated the pveperf command a couple of times)

Kind regards,

 

[l.mierzwa]

First server:

pve-manager: 1.6-4 (pve-manager/1.6/5229)
running kernel: 2.6.35-1-pve
proxmox-ve-2.6.35: 1.6-2
pve-kernel-2.6.32-3-pve: 2.6.32-14
pve-kernel-2.6.35-1-pve: 2.6.35-2
qemu-server: 1.1-19
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-14
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-8
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-2
ksm-control-daemon: 1.0-4

CPU BOGOMIPS: 89602.61
REGEX/SECOND: 1152007
HD SIZE: 9.84 GB (/dev/mapper/pve-root)
BUFFERED READS: 232.49 MB/sec
AVERAGE SEEK TIME: 4.60 ms
FSYNCS/SECOND: 99.49
DNS EXT: 144.90 ms

Second server:

pve-manager: 1.5-10 (pve-manager/1.5/4822)
running kernel: 2.6.32-2-pve
proxmox-ve-2.6.32: 1.5-7
pve-kernel-2.6.32-2-pve: 2.6.32-7
pve-kernel-2.6.18-2-pve: 2.6.18-5
qemu-server: 1.1-16
pve-firmware: 1.0-5
libpve-storage-perl: 1.0-13
vncterm: 0.9-2
vzctl: 3.0.23-1pve11
vzdump: 1.2-5
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.4-1
ksm-control-daemon: 1.0-3

CPU BOGOMIPS: 89602.15
REGEX/SECOND: 1115224
HD SIZE: 9.84 GB (/dev/mapper/pve-root)
BUFFERED READS: 120.35 MB/sec
AVERAGE SEEK TIME: 4.39 ms
FSYNCS/SECOND: 2585.32
DNS EXT: 55.92 ms

Both servers have identical hardware (HP DL360 G6).

 

[BitRausch]

Hi l.mirzwa,

try the latest kernel (kernel-2.6.35-3) on your first server. See also the post from dietmar in this thread. That should improve FSYNCS on your first server.

kind regards

 

[l.mierzwa]

Hi l.mirzwa,
try the latest kernel (kernel-2.6.35-3) on your first server. See also the post from dietmar in this thread. That should improve FSYNCS on your first server.
kind regards

I run test on wrong machine, now it's the one with 2.6.35-3:

pve-manager: 1.6-4 (pve-manager/1.6/5229)
running kernel: 2.6.35-1-pve
proxmox-ve-2.6.35: 1.6-3
pve-kernel-2.6.32-3-pve: 2.6.32-14
pve-kernel-2.6.35-1-pve: 2.6.35-3
qemu-server: 1.1-19
pve-firmware: 1.0-9
libpve-storage-perl: 1.0-14
vncterm: 0.9-2
vzctl: 3.0.24-1pve4
vzdump: 1.2-8
vzprocps: 2.0.11-1dso2
vzquota: 3.0.11-1
pve-qemu-kvm: 0.12.5-2
ksm-control-daemon: 1.0-4

CPU BOGOMIPS: 89602.35
REGEX/SECOND: 1163856
HD SIZE: 9.84 GB (/dev/mapper/pve-root)
BUFFERED READS: 127.07 MB/sec
AVERAGE SEEK TIME: 4.55 ms
FSYNCS/SECOND: 2485.65
DNS EXT: 205.96 ms