Thank you, Marti,
Is there any comprehensive survey of (at least most, if not all)
modern features of operating systems, for example I/O scheduling,
extent-based filesytems, etc.?
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Thank you, Craig, your answers are always insightful
What is read_cluster() ? Are you talking about some kind of async and/or
I meant that if you want to read a chunk of data from file you (1)
might not call traditional fseek but rather memorize hard drive
cluster numbers to boost disk seeks
Hello,
It is interesting how PostgreSQL reads the tablefiie.
Whether its indexes store/use filesystem clusters locations containing
required data (so it can issue a low level cluster read) or it just
fseeks inside a file?
Thank you
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Hello,
It is interesting how PostgreSQL reads the tablefiie.
Whether its indexes store/use filesystem clusters locations containing
required data (so it can issue a low level cluster read) or it just
fseeks inside a file?
Thank you
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Thank you a lot, Craig, that's really insightful and exhaustively
complete explanation I've expected!
2011/9/10 Craig Ringer ring...@ringerc.id.au:
On 10/09/2011 1:55 AM, Antonio Rodriges wrote:
Hello,
Does anyone know whether PostgreSQL uses DMA (Direct Memory Access) in
certain cases
for the system with PostgreSQL as
a layer. Certainly I could study PostgreSQL sources or test it with a
simple application but I hope PostgreSQL experts are aware of this
feature.
Thank you.
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Antonio Rodriges
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2011/9/9 Scott Marlowe scott.marl...@gmail.com:
On Fri, Sep 9, 2011 at 11:55 AM, Antonio Rodriges antonio@gmail.com
wrote:
Hello,
Does anyone know whether PostgreSQL uses DMA (Direct Memory Access) in
certain cases to improve networking IO
