Yes, I assume that the patch to group the writes isn't something we want
right now, and the one for O_DIRECT is going to need an additional
fsync, and I have asked for testing on that.
I have posted a patch that I think fixes the memory leak reported and am
waiting for feedback on that.
On Wed, Mar 23, 2005 at 01:55:46PM +0900, ITAGAKI Takahiro wrote:
Hi, Mark.
Mark Wong [EMAIL PROTECTED] wrote:
In light of this thread, have you compared the performance on
Linux-2.4?
No, but I'm just testing my patch on Linux-2.4 with a middle-range server.
I will report the results
On Tue, Jan 25, 2005 at 06:06:23PM +0900, ITAGAKI Takahiro wrote:
Environment:
OS : Linux kernel 2.6.9
CPU: Pentium 4 3GHz
disk : ATA 5400rpm (Data and WAL are placed on same partition.)
memory : 1GB
config : shared_buffers=1, wal_buffers=256,
Hi, Mark.
Mark Wong [EMAIL PROTECTED] wrote:
In light of this thread, have you compared the performance on
Linux-2.4?
No, but I'm just testing my patch on Linux-2.4 with a middle-range server.
I will report the results sometime soon.
By the way, I found the debug option
On Tue, 2005-03-01 at 13:53 -0800, Mark Wong wrote:
On Thu, Feb 03, 2005 at 07:25:55PM +0900, ITAGAKI Takahiro wrote:
Hello everyone.
I fixed two bugs in the patch that I sent before.
Check and test new one, please.
Ok, finally got back into the office and was able to run 1 set of
On Thu, Feb 03, 2005 at 07:25:55PM +0900, ITAGAKI Takahiro wrote:
Hello everyone.
I fixed two bugs in the patch that I sent before.
Check and test new one, please.
Ok, finally got back into the office and was able to run 1 set of
tests.
So the new baseline result with 8.0.1:
This thread has been saved for the 8.1 release:
http://momjian.postgresql.org/cgi-bin/pgpatches2
---
ITAGAKI Takahiro wrote:
Hello, all.
I think that there is room for improvement in WAL.
Here is a patch for
This has been saved for the 8.1 release:
http://momjian.postgresql.org/cgi-bin/pgpatches2
---
ITAGAKI Takahiro wrote:
Hello everyone.
I fixed two bugs in the patch that I sent before.
Check and test new one,
Hello everyone.
I fixed two bugs in the patch that I sent before.
Check and test new one, please.
1. Fix update timing of Write-curridx. (pointed by Tom)
Change to update it soon after write().
2. Fix buffer alignment routine on 64bit cpu. (pointed by Mark)
I checked it on Xeon EM64T
Hi everyone,
I gave this a try with DBT-2, but got a core dump on our ia64 system.
I hope this isn't a random thing, like I ran into previously. Maybe
I'll try again, but postgres dumped core. Binary and core here:
http://developer.osdl.org/markw/pgsql/core/2morefiles.tar.bz2
#0
Thanks for testing, Mark!
I gave this a try with DBT-2, but got a core dump on our ia64 system.
I hope this isn't a random thing, like I ran into previously. Maybe
I'll try again, but postgres dumped core.
Sorry, this seems to be my patch's bug.
Which datatype did you compile with? LP64,
Hmm... I don't remember specifying a datatype. I suppose whatever the
default one is. :)
I'll be happy to test again, just let me know.
Mark
On Fri, Jan 28, 2005 at 06:28:32AM +0900, ITAGAKI Takahiro wrote:
Thanks for testing, Mark!
I gave this a try with DBT-2, but got a core dump on our
Tom Lane [EMAIL PROTECTED] writes:
What does XLOG_EXTRA_BUFFERS accomplish?
It is because the buffer passed to direct-io must be aligned to
the same size of filesystem page, typically 4KB. Buffers allocated
with ShmemInitStruct are not necessarily aligned, so we need to allocate
extra buffers
Hello, all.
I think that there is room for improvement in WAL.
Here is a patch for it.
- Multiple pages are written in one write() if it is contiguous.
- Add 'open_direct' to wal_sync_method.
WAL writer writes one page in one write(). This is not efficient
when wal_sync_method is
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