Hello, I still have issues with performance.
I use 2 test programs - send and recv that simply pump data through my streams module. No wires. No nothing. Pure CPU/Memory performance test. I compare Linux and HPUX. Uniprocessor configuration. sar output shows: � � � �TPS �%user �%sys HPUX � �5000 44% � �55% Linux � 5100 19% � �80% �<-------!!! ? The TPS value is the same, which is bad(but convinient for comparison). The %user space performance ratio is 44/16 = 2.5 i.e it is 2.5 faster on Linux than on HPUX. Which roughly corresponds to how much XEON CPU is faster than PA_RISC. The %sys space performance ratio is mind boggling Linux use 80% of CPU in kernel/LiS mode vs. HPUX/Streams 55%. Given CPU speed ratio Linux/LiS is 4 times slower in %sys mode than HPUX/Streams. Can anyone advise on this? �Did anyone compare their test programs on Linux vs. HPUX? I plan to use kernel profiler to try to find out what's going on and would appreciate if any anyone can share any experience on that. I.e. which one to use, where to look? thanks -- Eugene __________________________________________________________________ Introducing the New Netscape Internet Service. Only $9.95 a month -- Sign up today at http://isp.netscape.com/register Netscape. Just the Net You Need. New! Netscape Toolbar for Internet Explorer Search from anywhere on the Web and block those annoying pop-ups. Download now at http://channels.netscape.com/ns/search/install.jsp _______________________________________________ Linux-streams mailing list [EMAIL PROTECTED] http://gsyc.escet.urjc.es/mailman/listinfo/linux-streams
