[ Adding relevant Cc:'s ]
On Thu, 30 Aug 2007, n wrote: > I found a bug when using the Ethernet controller: Realtek Semiconductor Co., > Ltd. RTL-8169 Gigabit Ethernet (rev 10) ethernet card and kernel High > Resolution Timers (menuconfig -> Processor type and features -> High > Resolution Timer Support ) > after about 20 kernel compiles i finnaly figured out this option was making > the ethernet card slow > tested kernels 2.6.22,2.6.22.5, 2.6.23-rc4 (running now) > > the cpu is the pc is a p3 667 mhz so its cpu limited i guess and maxes at > 400mbit~. (without High Resolution Timers ) > with High Resolution Timers off it would only do 50-70mbit. > > r8169 (compile as module + napi) > High Resolution Timer Support (enabled) > tested with iperf also system is very unresponsive i cant even open a ssh > session or type a command while the test ran > [ 5] 0.0-10.0 sec 64.5 MBytes 54.0 Mbits/sec > > r8169 (compile as module + napi) > High Resolution Timer Support (disabled) > [ 3] 0.0-10.0 sec 552 MBytes 463 Mbits/sec > > as you can see with it disabled the speed really improved. > but im wondering what does High Resolution Timer's do and what does it have to > do with a pci gigabit ethernet card that would slow it down > maybe someone else could test and see if they get the same results > > this might solve alot of problems with this card since alot of distros compile > Resolution Timer default to enabled... - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
