Coffee revolution graphic

2012-04-14 Thread Tony Shin
Dear Editor, I found your site while searching for people who have talked about coffee, caffeination and other related topics and wanted to reach out to see if I could get your readership's feedback on a graphic my team and I designed. It illustrates the history and health benefits of coffee

Re: Performance decrease with HAproxy

2012-04-14 Thread Carlo Flores
One more general q: Any measurable latency between the HAProxy and Squid boxes? 2012/4/14 Willy Tarreau : > Hi, > > On Sun, Apr 15, 2012 at 04:00:39AM +0700, Thái Lę Trí wrote: >> I have trouble with HAproxy. >> using HAproxy for load balance and backend have 3 squid proxy. But the time >> to load

Re: Performance decrease with HAproxy

2012-04-14 Thread Willy Tarreau
Hi, On Sun, Apr 15, 2012 at 04:00:39AM +0700, Thái Lê Trí wrote: > I have trouble with HAproxy. > using HAproxy for load balance and backend have 3 squid proxy. But the time > to load a web page with haproxy in front of squid is much more slower than > using squid directly. What's the connection

Performance decrease with HAproxy

2012-04-14 Thread Thái Lê Trí
I have trouble with HAproxy. using HAproxy for load balance and backend have 3 squid proxy. But the time to load a web page with haproxy in front of squid is much more slower than using squid directly. this is my conf global chroot /loadbalance/haproxy log 127.0.0.1 lo

Re: Performance optimization on VMWare VM's

2012-04-14 Thread Willy Tarreau
On Sat, Apr 14, 2012 at 08:06:00PM +0200, Lukas Tribus wrote: > > You need to pin network interrupts to a specific > > core and have haproxy run on a separate core sharing the same L2 cache as > > the > > one in charge for the interrupts. > > Do recent CPUs like Sandy Bridge and the upcoming Ivy

RE: Performance optimization on VMWare VM's

2012-04-14 Thread Lukas Tribus
> You need to pin network interrupts to a specific > core and have haproxy run on a separate core sharing the same L2 cache as the > one in charge for the interrupts. Do recent CPUs like Sandy Bridge and the upcoming Ivy Bridge actually have shared L2 cache between cores at all? L3 Cache is

Re: Performance optimization on VMWare VM's

2012-04-14 Thread Willy Tarreau
Hi Sebastian, On Sat, Apr 14, 2012 at 05:49:11PM +0200, Sebastian Fohler wrote: > I use HAPROXY on a ESXi 5.0 VM. To be exact I use two of them to load > balance. > My greates problem seems to be the finetuneing and the ability to get > the VM's stable enough. > For some reasons my haproxy insta

Performance optimization on VMWare VM's

2012-04-14 Thread Sebastian Fohler
I use HAPROXY on a ESXi 5.0 VM. To be exact I use two of them to load balance. My greates problem seems to be the finetuneing and the ability to get the VM's stable enough. For some reasons my haproxy instances are always giving up on estimated 2500 connections. Is there some howto or configura