> [EMAIL PROTECTED] ("Gregory S. Williamson") writes:
>>No point to beating a dead horse (other than the sheer joy of the
>>thing) since postgres does not have raw device support, but ... raw
>>devices, at least on solaris, are about 10 times as fast as cooked
>>file systems for Informix. This might still be a gain for postgres'
>>performance, but the portability issues remain.> From: Chris Browne [mailto:[EMAIL PROTECTED] > That claim seems really rather remarkable. > It implies an entirely stunning degree of inefficiency in the > implementation of filesystems on Solaris. > The amount of indirection involved in walking through i-nodes and such > is something I would expect to introduce some percentage of > performance loss, but for it to introduce overhead of over 900% > presumably implies that Sun (and/or Veritas) got something really > horribly wrong.
Gregory S. Williamson wrote:
Remarkable, perhaps, to you. Not in the Informix world. But> irrelevant to postgres, no ?
I too am a little surprised by those numbers, but I think the potential for a performance gain of that order is relevant.
As I once heard someone remark: "When show up at a pool hall talking those kind of odds, well, people start making phone calls."
- Marsh
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