Jonathan Haslam wrote: >> Yes I think this is something I'm looking for, but I'm not sure if I can >> use your Cap-Eye kernel image because my code changes are in kernel >> modules such as ip, sockfs and genunix. Nevertheless, I'll be happy to >> try it. >> >> > Unfortunately I touch a few areas in genunix so I don't think > you're going to be able to apply it here at the minute. >
No, it won't work if we both touched genunix. :( Thank you for your information, I'll try some other way. - yxn > However, if you would like to try it out anyway, let me know > and I'll point you at the bits. > > Jon. > >> - yxn >> >> >> >>> The following example shows user-land TLB activity by executable >>> on an Opteron processor. The probename in the probe specification >>> may well change but it consists of the event name followed the mode >>> specification and the count: >>> >>> # dtrace -qn 'cpc:::[EMAIL PROTECTED] = count();}' >>> ^C >>> >>> dtrace 1 >>> in.rlogind 1 >>> ls 1 >>> man 1 >>> nroff 1 >>> nscd 1 >>> pt_chmod 1 >>> quota 1 >>> sh 1 >>> sendmail 2 >>> inetd 3 >>> svc.configd 3 >>> ksh 4 >>> intrd 6 >>> login 10 >>> >>> So, in the above we fire the probe every 1000 user-land TLB misses and >> >from there we simply aggregate on execname. In your case you would >>> simply change the mode/count to suit and aggregate on stack() (to >>> start with anyway). Note that we are not getting an absolute view of >>> event causation here but a sampled view; this should provide a >>> statistically valid picture of the event activity though. >>> >>> I can happily provide you with a kernel to try but it comes as a >>> Cap-Eye and you, obviously, may not be able to use it if your bits >>> are outside of a single module or so. >>> >>> Cheers. >>> >>> Jon. >>> >>> >>> >>> >>>> - yxn >>>> >>>> >>>> >> _______________________________________________ >> perf-discuss mailing list >> perf-discuss@opensolaris.org >> >> > _______________________________________________ > perf-discuss mailing list > perf-discuss@opensolaris.org _______________________________________________ perf-discuss mailing list perf-discuss@opensolaris.org
