Hi all, I'm reading the bug news in
https://bugzilla.novell.com/show_bug.cgi?id=333739.
Maybe I'm being too much newbie, I cannot understand why the audit is
enabled by default, and what "CONFIG_AUDITSYSCALL" option means. Any
hint?
Rob
On 10/19/07, Ben Kevan
On Thursday 18 October 2007 02:25:04 pm nordi wrote:
I built myself a new kernel and surprise: I got A LOT faster!
Posix 10.0 UTF8 10.3 10.3 (new kernel) ========== ======== ========== Dhrystone 336 339 338 Whetstone 198 204 206 Execl 658 576 632 File Copy 1024 535 481 595 File Copy 256 455 355 458 File Copy 4096 588 717 827 Pipe Throughput 468 278 408 Context Switch 554 384 567 Process Creat 1000 783 921 Shell Scripts1 873 344 362 Shell Scripts8 894 332 349 System Call 904 334 819 ------ ------ ------ Index Score: 569 397 496
I have appended my kernel config. It is the standard config minus everything that I thought could potentially hurt syscall performance (8 changes all together). Since building a kernel takes quite some time on my machine I haven't checked exactly which change it was.
Note that I used UTF-8 again, but Shell Script performance still went up by 17-18 points. That is a 5% speed increase for a shell script, simply because of the new kernel! Quite likely other applications will benefit as well.
I think Suse should really look into this issue, getting 5% more performance in your applications is something that everyone would like to have. But so far, I have gotten no replies to my bug report [1]. Btw, if you have a Bugzilla account you can add yourself to the CC: list and get informed about all changes to this bug.
Regards nordi
I did similar here.. I actually installed a vanilla 2.6.23.. and boy.. the shit screamed like a little kiddie in a haunted house on halloween.. I love it..
Ben
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