Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-10 Thread soralx
Beaver Challenge 2004 is coming!. Details in http://osuosl.org/benchmarks/bc/ We are preparing the tuning guide. Definitely we need suggestions and comments. does the sysctl 'machdep.cpu_idle_hlt' still have any effect? see:

Re: Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-10 Thread Dung Patrick
+0100 Subject: Re: [call for helpers!] Tuning for the Beaver Challenge Dung Patrick [EMAIL PROTECTED] writes: For those optionts CPU_FASTER_5X86_FPU through CPU_UPGRADE_HW_CACHE, it is suggested by an user in the forum. I would like to see the comments from the mailing list. If those options

Re: Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-10 Thread Dung Patrick
-0500 Subject: Re: [call for helpers!] Tuning for the Beaver Challenge In section 2.2.3, /etc/sysctl.conf: To our experience, it also helps to tune inode cache behavior by setting: vfs.vmiodirenable=0; (maybe) vfs.nameileafonly=-1 On a server with large memory, if apache 1.x is tested, maybe

[call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dung Patrick
Hi Beaver Challenge 2004 is coming!. Details in http://osuosl.org/benchmarks/bc/ We are preparing the tuning guide. Definitely we need suggestions and comments. Please see this forum to view the latest tuning guide: http://osuosl.org/forums/viewforum.php?f=8 Attached is a ver0.4 of the tuning

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Mike Silbersack
Bascially everything in section 2.2.3 (/etc/sysctl.conf) is wrong; some values may need tweaking, but changing them blindly will not be helpful. The one setting that I do suggest you keep is: kern.ipc.somaxconn=512 (128 may be too low for http testing) The settings from section 2.2.4 will

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Aniruddha Bohra
Hello, The one setting that I do suggest you keep is: kern.ipc.somaxconn=512 (128 may be too low for http testing) In our experience with Apache and clients that do not use Keep Alive (are short lived), 512 is also very low. It causes listen queue overflows and leads to a very low throughput.

Re: Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dung Patrick
] Date: Mon, 9 Feb 2004 11:12:38 -0600 (CST) Subject: Re: [call for helpers!] Tuning for the Beaver Challenge Bascially everything in section 2.2.3 (/etc/sysctl.conf) is wrong; some values may need tweaking, but changing them blindly will not be helpful. The one setting that I do suggest you keep

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Yaoping Ruan
In section 2.2.3, /etc/sysctl.conf: To our experience, it also helps to tune inode cache behavior by setting: vfs.vmiodirenable=0; (maybe) vfs.nameileafonly=-1 On a server with large memory, if apache 1.x is tested, maybe it is also necessary to increase: vm.max_proc_mmap In section 2.2.4,

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dag-Erling Smørgrav
Dung Patrick [EMAIL PROTECTED] writes: For those optionts CPU_FASTER_5X86_FPU through CPU_UPGRADE_HW_CACHE, it is suggested by an user in the forum. I would like to see the comments from the mailing list. If those options are dangerous, then don't use them. CPU_FASTER_5X86_FPU is not likely

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Andrew J Caines
For your consideration, bearing in mind I haven't read all details of the challenge or the systems and therefore may suggest inappropriate, wrong or dangerous things: Custom kernel enabling only the hardware needed, all compiled in (no modules), but be careful with fancy looking options in

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dag-Erling Smørgrav
Andrew J Caines [EMAIL PROTECTED] writes: Mount all filesystems with async, noatime and *enable softupdates*. async and softupdates are mutually exclusive. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ [EMAIL PROTECTED] mailing list

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dag-Erling Smørgrav
Andrew J Caines [EMAIL PROTECTED] writes: If any DNS activity is needed, a local cache (eg. dnscache) can help, but so can a nicely populated /etc/hosts. Depending on the tests, it may be a good idea to have the hostname (fully and unqualified) associated with the loopback rather than the

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Matthew D. Fuller
On Mon, Feb 09, 2004 at 07:27:08PM +0100 I heard the voice of Dag-Erling Sm?rgrav, and lo! it spake thus: CPU_FASTER_5X86_FPU is not likely to have any positive impact on performance, and fairly likely to render the system unbootable. I would guess just from the name that this (and some

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Andrew J Caines
This might also be an opportune time to test the benefits of compilers other than gcc, such as Intel's reputedly super-optimised-vs-gcc C/C++ compiler (lang/icc). I've not tried icc or any of the other non-gcc compilers and I'm not suggesting it will help, or even what one might try to compile,

Re: [call for helpers!] Tuning for the Beaver Challenge

2004-02-09 Thread Dag-Erling Smørgrav
Matthew D. Fuller [EMAIL PROTECTED] writes: CPUTYPE ?= pentiumpro I recall a thread somewhere recently about pentiumpro being decidedly suboptimal for some new CPUs. Although, on 4.x with the older version of gcc, it may not matter. I believe the reverse is true - pentiumpro proved to be