On Tue, 2021-02-09 at 15:06 +0200, Yordan Karadzhov (VMware) wrote: > Ciao Dario, > Ciao! :-) > There is a bug in one of the patches from the last patch-set I sent. > This bug was reported by Tzvetomir. My guess is that you are hitting > the > same issue. If this is the case you must also have an error message > saying "Unable to find FreeSans font". > Yep, I was seeing that too. And, TBH, for a while I installed font packages like mad, thinking it was related to something like that. :-P > You can manually do the fix suggested by Tzvetomir (see his reply to > [PATCH 15/24] kernel-shark: Update KsDualMarker and KsGLWidget) or > just > get a corrected (rebased) version of the code from > https://github.com/yordan-karadzhov/kernel-shark-v2.beta > Ah, great! I updated (rebase included), and now plots are back. > Please let me know if this fixes your issue. > Indeed it does, thanks a lot again. Now, if I try "KVM Combo Plot": - I still see super weird results if I use the KVM clock from last patch in Tzvetomir series (but I guess I'll report it there). - If I use PTP, that kind of works. If I trace a `sleep 1` on the host, the result is like this: http://xenbits.xen.org/people/dariof/kernelshark-v2-ptp.png So, there is ~ 1 sec of data from the guest, coming from trace-cmd agent. The host, however, went on and traced a little bit longer, even after closing the connection. It's not too terrible, I'm just curious whether this is known or it's something weird and it's only me seeing it. Evaluating the correctness and the accuracy of the synchronization is a little bit of a challenge, especially for me that I'm not used to it. And, at least in part, because I still don't have this change in the kernel I'm using right now, so some kvm_entry trace points are not recorded, which means it's tricky pairing VMEntries and VMExits: https://lore.kernel.org/lkml/160873470698.11652.13483635328769030605.stgit@Wayrath/ It should come with 5.11, but I think I'll quickly apply it to the 5.10 that I'm running, to try to understand better hat's going on. Thanks and Regards -- Dario Faggioli, Ph.D http://about.me/dario.faggioli Virtualization Software Engineer SUSE Labs, SUSE https://www.suse.com/ ------------------------------------------------------------------- <<This happens because _I_ choose it to happen!>> (Raistlin Majere)
Attachment:
signature.asc
Description: This is a digitally signed message part
|