Re: [perf-discuss] Poor zone performance in small servers

2007-06-19 Thread Dan Price
On Tue 19 Jun 2007 at 09:37PM, Luke Schwab wrote: > Hi, > > I have recently been running performance tests with zones on several > Sun servers. (280's and 880's), 2 CPU and 8CPUs respectively. > > On my 280 servers (2CPU machines), I installed and booted 3 zones and > I get poor performance on ac

[perf-discuss] Poor zone performance in small servers

2007-06-19 Thread Luke Schwab
Hi, I have recently been running performance tests with zones on several Sun servers. (280's and 880's), 2 CPU and 8CPUs respectively. On my 280 servers (2CPU machines), I installed and booted 3 zones and I get poor performance on across the network (400Mbps). I only transfer data at 80% of wh

Re: [perf-discuss] cpu performance counters obtained by vmstat and prstat look conflict

2007-06-19 Thread Wee Yeh Tan
On 6/18/07, Jean-Francois Richard <[EMAIL PROTECTED]> wrote: Typically, changing the prstat refresh time doesn't change anything because the %cpu it is displaying remains the decaying average over the last minute. Jean, You are certainly correct about pcpu. I was hoping that reducing refresh

Re: [perf-discuss] cpu performance counters obtained by vmstat and prstat look conflict

2007-06-19 Thread 陶捷 Euler Tao
Hi, Jean Thank you for your explaination and your helpful advices :) It seems you're right. After reading your guess, it reminded me that something I've read from a book, Solairs Performance and Tools, and the author talked about the decaying problem in this book. 2007/6/18, Jean-Francois Richa

Re: [networking-discuss] Re: [perf-discuss] Followup on microoptimizing ip_addr_match()

2007-06-19 Thread Dan McDonald
On Mon, Jun 18, 2007 at 01:07:26PM -0700, Bart Smaalders wrote: > On x86, why not inline a bswap instruction? That *is* the actual implementation of htons()/ntohs(). Here, check it out! >From $SRC/uts/intel/ia32/ml/ia32.il: / / Networking byte order functions (too bad, Intel has the wrong by