Am Samstag, 7. Mai 2016 schrieb andy pugh: > On 7 May 2016 at 09:39, Nicklas Karlsson <[email protected]> > wrote: > > > I have an old server intel Xeon, it is used as a server and I did not try > > real time kernel yet. > > > I have been running an old Xeon server on my lathe for several years now. > It's just about OK for latency, but does need the SMI tweak or it throws in > a big one every 64 seconds. This is an old dual-CPU P3 Xeon in a 1U case. > No point using one of those now that Mini-itx boards exist. >
After some days of fiddling I just got some dated thinkpads (X60 and X61) working quite nicely. I had to use smictrl, because the thinkpads special keys are somehow hooked to SMI and give a spike when pressed. Also Xorg had to be persuaded not to use the intel video driver. And at the end I found that some harddisks cause problems: Hitachi work fine, WD gives spikes (400us on X60, 50us on X61). Now I have a latency of ~ 6us on X60 and ~ 15us on X61, which I consider quite OK. Nik -- Please do not email me anything that you are not comfortable also sharing with the NSA. ------------------------------------------------------------------------------ Find and fix application performance issues faster with Applications Manager Applications Manager provides deep performance insights into multiple tiers of your business applications. It resolves application problems quickly and reduces your MTTR. Get your free trial! https://ad.doubleclick.net/ddm/clk/302982198;130105516;z _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
