Messages in this thread | | | Date | Sat, 30 Sep 2017 10:27:04 +0200 | From | Borislav Petkov <> | Subject | Re: [RFC 0/5] x86/intel_rdt: Better diagnostics |
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On Thu, Sep 21, 2017 at 02:08:15PM +0200, Borislav Petkov wrote: > On Mon, Sep 18, 2017 at 03:18:38PM -0700, Luck, Tony wrote: > > From: Tony Luck <tony.luck@intel.com> > > > > Chatting online with Boris to diagnose why his test cases for RDT > > weren't working, we came up with either a good idea (in which case > > I credit Boris) or a dumb one (in which case this is all my fault). > > Ha! I can share the fault, no worries :-) > > I'll test them on my box when I get a chance.
Ok, I ran latest tip/master which has your patches:
# mkdir p0 p1 # echo "L3:0=00fff;1=ff000\nMB:0=50;1=50" > /sys/fs/resctrl/p0/schemata bash: echo: write error: Invalid argument # cat info/last_cmd_status non-hex character in mask ff000\nMB:0=50
<--- I think this needs to be fixed in the doc examples to say:
echo -e "L3:0=00fff;1=ff000\nMB:0=50;1=50" > /sys/fs/resctrl/p0/schemata
i.e., you need to supply -e in order to interpret backslash chars.
# echo -e "L3:0=00fff;1=ff000\nMB:0=50;1=50" > /sys/fs/resctrl/p0/schemata bash: echo: write error: Invalid argument # cat info/last_cmd_status unknown/unsupported resource name 'MB'
<--- Yap, much better.
# mkdir c1 # cat c1/schemata L3:0=fffff;1=fffff # echo "L3:0=3;1=3" > c1/schemata # cat info/last_cmd_status ok # echo 1 > c1/tasks # cat info/last_cmd_status ok #
Yap, thanks for doing this!
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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