True. Although hdparm -tT showed a threefold improvement, my zope startup and access times hardly changed. I'm currently reinstalling and doing more tests, more in half an hour or so. Ron Arts Toby Dickenson wrote:
On Thu, 14 Mar 2002 11:57:41 -0500, "Matthew T. Kromer" <matt@zope.com> wrote:
Ron, just to make sure, you do have DMA enabled on your hard drives, right? hdparm should tell you that status. If you don't, then you'll suffer greatly when you need to do I/O because all of the bytes are running through the CPU.
What bytes?
The biggest 'bi' (blocks read from disk) is 6, thats 25k/second
The biggest 'bo' (blocks written to disk) is 171, and the second biggest 32. thats 684k/second or 128k/second.
Never mind DMA; I could be writing those bytes by hand with pencil and paper and it wouldnt make zope as slow as he is reporting.
Toby Dickenson tdickenson@geminidataloggers.com