Re: Slow on heavy I/O operations.

2007-03-22 Thread Dieter
> But what I can't understand - why such non-critical(as it seems to me) > disk activity, cause 100% busyness for disk? Others have pointed out the effect of seeking. It would be very useful if there was a way to nice I/O up or down the way we can nice CPU usage up or down. Then non-critical dis

Where to troubleshoot Intel PRO/1000 performance problems?

2007-03-22 Thread Sally Janghos
I'm looking for some suggestions on where to start troubleshooting performance issues on a Intel PRO 1000 card. It's installed in a box with the following configuration: FreeBSD 6.1 AMD Athlon(tm) XP 2100+ (1741.42-MHz 686-class CPU) Dell CERC SATA RAID 2 The file transfe

Re: Slow on heavy I/O operations.

2007-03-22 Thread Cheffo
Roman Gorohov. wrote: -CUT- That seems like true, and I forget to mention that 2/3 of swap is located at physical disk(da0). [EMAIL PROTECTED] ~]#swapinfo Device 1K-blocks UsedAvail Capacity Type /dev/da0s1b524160 4633006086088%Interleaved /dev/rvn0b

Re: Slow on heavy I/O operations.

2007-03-22 Thread Ivan Voras
Roman Gorohov. wrote: > But what I can't understand - why such non-critical(as it seems to me) disk > activity, > cause 100% busyness for disk? Its claim to be 40.000MB/s transfers, but > sometimes its 100% busy when iostat show only 1 MB/s. Because disk seeks count. If you have a lot of small t

Re: Slow on heavy I/O operations.

2007-03-22 Thread Eric Anderson
On 03/22/07 08:20, Roman Gorohov. wrote: Hi, Oliver. Thanks for explanations. Roman Gorohov. <[EMAIL PROTECTED]> wrote: >> Hello list. >> There is a server with FreeBSD FreeBSD 4.11-STABLE(can't upgrade fornow) on HP ProLiant DL140. >> Disk system: at scbus0 target 0 lun0(pass0,da0) on a

Re[2]: Slow on heavy I/O operations.

2007-03-22 Thread Roman Gorohov.
Hi, Oliver. Thanks for explanations. > Roman Gorohov. <[EMAIL PROTECTED]> wrote: >> Hello list. >> There is a server with FreeBSD FreeBSD 4.11-STABLE(can't upgrade fornow) on >> HP ProLiant DL140. >> Disk system: at scbus0 target 0 lun0(pass0,da0) >> on a ASC-29320A. >> If I do: >> [EMAI