On 04/04/2021 17:46, jmario@xxxxxxxxxx wrote: > Hi Loic: > A little more clarification, as I dug in deeper. > > I was wrong on the cpu type. It is an Intel cpu. > But led me astray was the uname and the /proc/cmdline: > uname: Linux enough 5.10.0-5-amd64 #1 SMP Debian 5.10.24-1 (2021-03-19) x86_64 GNU/Linux > /proc/cmdline: BOOT_IMAGE=/vmlinuz-5.10.0-5-amd64 root=/dev/mapper/enough--vg-root ro quiet > > But looking at the lscpu, I do see it's an Intel cpu. (Sorry for not looking at that first before sent my earlier reply.) I'm relieved. > > It appears the Debian amd64 kernel does not support the perf events needed for this. > > Is it possible for you to run this on a recent CentOS-8 OS version? Is there a simple way to verify that the kernel has support for perf events ? I'd like to try Ubuntu because it's been a while since I installed a CentOS. > I also see the system you used is a small, desktop level system with only 4 cpus (2 cores). If you can get a larger server, you should see more contention, which would help with this effort. Yes, once the tests are ready I'll run them on an Intel server with 128 CPU :-) > > Thanks, > Joe > _______________________________________________ > Dev mailing list -- dev@xxxxxxx > To unsubscribe send an email to dev-leave@xxxxxxx -- Loïc Dachary, Artisan Logiciel Libre
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