pveperf results with Apaptec 5805 Controller

[tom]

I just tested a Apaptec 5805 raid controller and got really good results, especially FSYNCS/SECOND - I am using RAID10 with 6 quite old 250 GB seagate sata disks.

The main performance boosts is the result of the 512mb raid controller cache (with BBU) - If you connect up2date SAS or SSD hard drives to such a controller you will get a really nice system.

proxmox# pveperf
CPU BOGOMIPS:      19155.36
REGEX/SECOND:      756025
HD SIZE:           94.49 GB (/dev/pve/root)
BUFFERED READS:    232.35 MB/sec
AVERAGE SEEK TIME: 9.74 ms
FSYNCS/SECOND:     3216.18
DNS EXT:           139.67 ms
DNS INT:           0.69 ms (proxmox.com)

 

[arthurhugo]

Apaptec 5805 controller with 2x 1TB Seagate ES2 7200 RPM SATA in RAID 1:

CPU BOGOMIPS:      48028.95
REGEX/SECOND:      927395
HD SIZE:           3.94 GB (/dev/pve/root)
BUFFERED READS:    145.09 MB/sec
AVERAGE SEEK TIME: 6.64 ms
FSYNCS/SECOND:     3612.96
DNS EXT:           15.56 ms
DNS INT:           2.56 ms

LSI 8300ELP controller with 4x 146 GB Seagate Cheetah 15.000 RPM SAS in RAID 10:

CPU BOGOMIPS:      40004.48
REGEX/SECOND:      899419
HD SIZE:           3.94 GB (/dev/pve/root)
BUFFERED READS:    213.57 MB/sec
AVERAGE SEEK TIME: 4.01 ms
FSYNCS/SECOND:     120.68
DNS EXT:           17.12 ms
DNS INT:           2.68 ms

I suspect the LSI controller has a buggy firmware but it refuses to be upgraded. I'll avoid LSI from now on but I definitely recommend the Adaptec 5805. The RAID BIOS is also a lot easier to use. The textmode Linux configuration utility doesn't win any prizes for ease of use but that seems to be the case for most RAID controllers.

Can pveperf benchmark other harddisks than the ones where the root partition is on? If so I can post the results for the Cheeteah's on the Adaptec 5805.

 

[tom]

Can pveperf benchmark other harddisks than the ones where the root partition is on? If so I can post the results for the Cheeteah's on the Adaptec 5805.

no, pveperf is a very basic benchmark tool but most time enough for a short analysis. the results from the LSI shows that the controller cache is not working (slow fsyncs/second).

 

[udo]

Hi,
only for relation the pveperf-results with an Areca 1210 and 4 WD-Raptor300 in a raid-10 setup.
The machine is an old one - so the cpu-performance is not so well, but the io ist not to bad:

proxmox2:~# pveperf
CPU BOGOMIPS:      10451.49
REGEX/SECOND:      458622
HD SIZE:           94.49 GB (/dev/pve/root)
BUFFERED READS:    295.47 MB/sec
AVERAGE SEEK TIME: 5.57 ms
FSYNCS/SECOND:     3064.08
DNS EXT:           144.84 ms
DNS INT:           0.77 ms

Udo