Hi list, > In my testing enviroment x86 Redhat Linux is having trouble in 4 CPUs > config, I'd summary below, hope you could help. > I use queryperf, which is included in bind, to test bind 9.3.0 > performance on Linux(rhel3 u3), both HP Proliant(dl580 G2) and > Itanium(rx4640). This is just a simple test, only 5 records in a > master domain, so all data are in cache. named is compiled and > configured to enable multi-threads. I use 4 queryperf clients, add > presure to a simgle server (4 IPs over a single NIC) separately. > For Integrity Linux(2.4), 2 cpu got ~50000 qps, and 4 cpu got ~75000. > usr% is about 70%, sys% is below 30%. > I suppose this is ok. > For Proliant Linux(2.4), 2 cpu got ~50000 qps, but 4 cpu got almost > also 50000. user% is 50%, sys% is 40%. > Network is not a problem, since rx4640(4cpu) took 15MB/s, which > dl580(4cpu) only took 11MB/s. > I suspect either the redhat kernel has a scalability problem, or x86 > architecture has trouble handling mass dns requests. >I'm seeking a tool to track system cpu usage to see what are they busying for. >BTW, I use one 1000Mb NIC with four IPs at dl580, and 4 clients query >separately. I'll also try bonding interrupt to one CPU, somebody said this may >help. But how to set it? > Do you have comments? > Thx.
-- redhat-list mailing list unsubscribe mailto:redhat-list-request@xxxxxxxxxx?subject=unsubscribe https://www.redhat.com/mailman/listinfo/redhat-list
