* [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin @ 2012-12-27 11:34 Gleb Natapov 2013-01-28 11:12 ` Gleb Natapov 0 siblings, 1 reply; 6+ messages in thread From: Gleb Natapov @ 2012-12-27 11:34 UTC (permalink / raw) To: srostedt; +Cc: kvm kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new even, but leave the old one to parse older traces. Print out "created" field for kvm_mmu_get_page event. Signed-off-by: Gleb Natapov <gleb@redhat.com> diff --git a/plugin_kvm.c b/plugin_kvm.c index 55812ef..9b376d8 100644 --- a/plugin_kvm.c +++ b/plugin_kvm.c @@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, } else trace_seq_printf(s, "WORD: %08x", role.word); - pevent_print_num_field(s, " root %u", event, + pevent_print_num_field(s, " root %u ", event, "root_count", record, 1); if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0) @@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r { unsigned long long val; + if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0) + return -1; + + trace_seq_printf(s, "%s ", val ? "new" : "existing"); + if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0) return -1; @@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page", kvm_mmu_print_role, NULL); + pevent_register_event_handler(pevent, -1, "kvmmmu", + "kvm_mmu_prepare_zap_page", kvm_mmu_print_role, + NULL); + return 0; } -- Gleb. ^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin 2012-12-27 11:34 [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin Gleb Natapov @ 2013-01-28 11:12 ` Gleb Natapov 2013-01-28 14:59 ` Steven Rostedt 2013-01-28 15:23 ` Steven Rostedt 0 siblings, 2 replies; 6+ messages in thread From: Gleb Natapov @ 2013-01-28 11:12 UTC (permalink / raw) To: srostedt; +Cc: kvm Ping. On Thu, Dec 27, 2012 at 01:34:15PM +0200, Gleb Natapov wrote: > kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new > even, but leave the old one to parse older traces. Print out "created" > field for kvm_mmu_get_page event. > > Signed-off-by: Gleb Natapov <gleb@redhat.com> > diff --git a/plugin_kvm.c b/plugin_kvm.c > index 55812ef..9b376d8 100644 > --- a/plugin_kvm.c > +++ b/plugin_kvm.c > @@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, > } else > trace_seq_printf(s, "WORD: %08x", role.word); > > - pevent_print_num_field(s, " root %u", event, > + pevent_print_num_field(s, " root %u ", event, > "root_count", record, 1); > > if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0) > @@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r > { > unsigned long long val; > > + if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0) > + return -1; > + > + trace_seq_printf(s, "%s ", val ? "new" : "existing"); > + > if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0) > return -1; > > @@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) > pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page", > kvm_mmu_print_role, NULL); > > + pevent_register_event_handler(pevent, -1, "kvmmmu", > + "kvm_mmu_prepare_zap_page", kvm_mmu_print_role, > + NULL); > + > return 0; > } > -- > Gleb. > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Gleb. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin 2013-01-28 11:12 ` Gleb Natapov @ 2013-01-28 14:59 ` Steven Rostedt 2013-01-28 15:23 ` Steven Rostedt 1 sibling, 0 replies; 6+ messages in thread From: Steven Rostedt @ 2013-01-28 14:59 UTC (permalink / raw) To: Gleb Natapov; +Cc: kvm On Mon, 2013-01-28 at 13:12 +0200, Gleb Natapov wrote: > Ping. Please send email (especially patches) to my rostedt@goodmis.org account. I don't always read my RH email, except to skim it for RH related work. I may miss a patch in my goodmis account, but I will periodically purge it (go through each email one by one and put them into special folders or delete them). A patch missed will eventually be hit there. But that's not the same for my RH account. A patch missed there, will never be seen again. Note, I'm still in November of my "purge" so a December patch will probably take a week or two to see now ;-) Anyway, I'll take a look at this patch and let you know. Thanks, -- Steve > > On Thu, Dec 27, 2012 at 01:34:15PM +0200, Gleb Natapov wrote: > > kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new > > even, but leave the old one to parse older traces. Print out "created" > > field for kvm_mmu_get_page event. > > > > Signed-off-by: Gleb Natapov <gleb@redhat.com> > > diff --git a/plugin_kvm.c b/plugin_kvm.c > > index 55812ef..9b376d8 100644 > > --- a/plugin_kvm.c > > +++ b/plugin_kvm.c > > @@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, > > } else > > trace_seq_printf(s, "WORD: %08x", role.word); > > > > - pevent_print_num_field(s, " root %u", event, > > + pevent_print_num_field(s, " root %u ", event, > > "root_count", record, 1); > > > > if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0) > > @@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r > > { > > unsigned long long val; > > > > + if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0) > > + return -1; > > + > > + trace_seq_printf(s, "%s ", val ? "new" : "existing"); > > + > > if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0) > > return -1; > > > > @@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) > > pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page", > > kvm_mmu_print_role, NULL); > > > > + pevent_register_event_handler(pevent, -1, "kvmmmu", > > + "kvm_mmu_prepare_zap_page", kvm_mmu_print_role, > > + NULL); > > + > > return 0; > > } > > -- > > Gleb. > > -- > > To unsubscribe from this list: send the line "unsubscribe kvm" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > Gleb. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin 2013-01-28 11:12 ` Gleb Natapov 2013-01-28 14:59 ` Steven Rostedt @ 2013-01-28 15:23 ` Steven Rostedt 2013-01-28 17:00 ` Gleb Natapov 1 sibling, 1 reply; 6+ messages in thread From: Steven Rostedt @ 2013-01-28 15:23 UTC (permalink / raw) To: Gleb Natapov; +Cc: kvm On Mon, 2013-01-28 at 13:12 +0200, Gleb Natapov wrote: > Ping. > > On Thu, Dec 27, 2012 at 01:34:15PM +0200, Gleb Natapov wrote: > > kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new > > even, but leave the old one to parse older traces. Print out "created" > > field for kvm_mmu_get_page event. > > > > Signed-off-by: Gleb Natapov <gleb@redhat.com> > > diff --git a/plugin_kvm.c b/plugin_kvm.c > > index 55812ef..9b376d8 100644 > > --- a/plugin_kvm.c > > +++ b/plugin_kvm.c > > @@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, > > } else > > trace_seq_printf(s, "WORD: %08x", role.word); > > > > - pevent_print_num_field(s, " root %u", event, > > + pevent_print_num_field(s, " root %u ", event, > > "root_count", record, 1); > > > > if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0) > > @@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r > > { > > unsigned long long val; > > > > + if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0) Is "created" a new field? Or is it something that has always been there but never displayed? If it is new, then instead of returning '-1' if it's not found, could you just ignore it. I don't want old kernels to start breaking on new trace-cmd plugins. Thanks, -- Steve > > + return -1; > > + > > + trace_seq_printf(s, "%s ", val ? "new" : "existing"); > > + > > if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0) > > return -1; > > > > @@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) > > pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page", > > kvm_mmu_print_role, NULL); > > > > + pevent_register_event_handler(pevent, -1, "kvmmmu", > > + "kvm_mmu_prepare_zap_page", kvm_mmu_print_role, > > + NULL); > > + > > return 0; > > } > > -- > > Gleb. > > -- > > To unsubscribe from this list: send the line "unsubscribe kvm" in > > the body of a message to majordomo@vger.kernel.org > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > Gleb. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin 2013-01-28 15:23 ` Steven Rostedt @ 2013-01-28 17:00 ` Gleb Natapov 2013-01-28 17:22 ` Steven Rostedt 0 siblings, 1 reply; 6+ messages in thread From: Gleb Natapov @ 2013-01-28 17:00 UTC (permalink / raw) To: Steven Rostedt; +Cc: kvm On Mon, Jan 28, 2013 at 10:23:50AM -0500, Steven Rostedt wrote: > On Mon, 2013-01-28 at 13:12 +0200, Gleb Natapov wrote: > > Ping. > > > > On Thu, Dec 27, 2012 at 01:34:15PM +0200, Gleb Natapov wrote: > > > kvm_mmu_zap_page event was renamed to kvm_mmu_prepare_zap_page. Add new > > > even, but leave the old one to parse older traces. Print out "created" > > > field for kvm_mmu_get_page event. > > > > > > Signed-off-by: Gleb Natapov <gleb@redhat.com> > > > diff --git a/plugin_kvm.c b/plugin_kvm.c > > > index 55812ef..9b376d8 100644 > > > --- a/plugin_kvm.c > > > +++ b/plugin_kvm.c > > > @@ -382,7 +382,7 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record, > > > } else > > > trace_seq_printf(s, "WORD: %08x", role.word); > > > > > > - pevent_print_num_field(s, " root %u", event, > > > + pevent_print_num_field(s, " root %u ", event, > > > "root_count", record, 1); > > > > > > if (pevent_get_field_val(s, event, "unsync", record, &val, 1) < 0) > > > @@ -397,6 +397,11 @@ static int kvm_mmu_get_page_handler(struct trace_seq *s, struct pevent_record *r > > > { > > > unsigned long long val; > > > > > > + if (pevent_get_field_val(s, event, "created", record, &val, 1) < 0) > > Is "created" a new field? Or is it something that has always been there > but never displayed? > Always been there, but for some reason, was not displayed. > If it is new, then instead of returning '-1' if it's not found, could > you just ignore it. I don't want old kernels to start breaking on new > trace-cmd plugins. > > Thanks, > > -- Steve > > > > + return -1; > > > + > > > + trace_seq_printf(s, "%s ", val ? "new" : "existing"); > > > + > > > if (pevent_get_field_val(s, event, "gfn", record, &val, 1) < 0) > > > return -1; > > > > > > @@ -433,5 +438,9 @@ int PEVENT_PLUGIN_LOADER(struct pevent *pevent) > > > pevent_register_event_handler(pevent, -1, "kvmmmu", "kvm_mmu_zap_page", > > > kvm_mmu_print_role, NULL); > > > > > > + pevent_register_event_handler(pevent, -1, "kvmmmu", > > > + "kvm_mmu_prepare_zap_page", kvm_mmu_print_role, > > > + NULL); > > > + > > > return 0; > > > } > > > -- > > > Gleb. > > > -- > > > To unsubscribe from this list: send the line "unsubscribe kvm" in > > > the body of a message to majordomo@vger.kernel.org > > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > > > -- > > Gleb. > -- Gleb. ^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin 2013-01-28 17:00 ` Gleb Natapov @ 2013-01-28 17:22 ` Steven Rostedt 0 siblings, 0 replies; 6+ messages in thread From: Steven Rostedt @ 2013-01-28 17:22 UTC (permalink / raw) To: Gleb Natapov; +Cc: kvm On Mon, 2013-01-28 at 19:00 +0200, Gleb Natapov wrote: > > Is "created" a new field? Or is it something that has always been there > > but never displayed? > > > Always been there, but for some reason, was not displayed. OK, I'll apply it then. Thanks! -- Steve > > > If it is new, then instead of returning '-1' if it's not found, could > > you just ignore it. I don't want old kernels to start breaking on new > > trace-cmd plugins. > > > > ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2013-01-28 17:22 UTC | newest] Thread overview: 6+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2012-12-27 11:34 [PATCHv2] trace-cmd: add kvm_mmu_prepare_zap_page even and fix kvm_mmu_get_page event output in kvm plugin Gleb Natapov 2013-01-28 11:12 ` Gleb Natapov 2013-01-28 14:59 ` Steven Rostedt 2013-01-28 15:23 ` Steven Rostedt 2013-01-28 17:00 ` Gleb Natapov 2013-01-28 17:22 ` Steven Rostedt
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