Re: File system performance, hardware performance, ext3, 3ware RAID1, etc.

[Walt H]

On Thu, Feb 12, 2004 at 06:32:31PM -0500, Timothy Miller wrote:

> For writes, iozone found an upper bound of about 10megs/sec, which is 
> abysmal.  Typically, I'd expect writes to be faster (on a single drive) 
> than reads, because once the write is sent, you can forget about it. 
> You don't have to wait around for something to come back, and that 
> latency for reads can hurt performance.  The OS can also buffer writes 
> and reorder them in order to improve efficiency.

I'm joining this thread rather late, so perhaps I missed something. What 
hardware is the test being ran on? I have an AMD MPX based setup which 
suffers from a chipset bug which effectively limits writes to ~25MB/sec to 
devices connected via the 768 southbridge. Maybe something similar with your 
hardware?

-Walt

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