From: Arnaldo Carvalho de Melo <acme@infradead.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org, David Ahern <dsahern@gmail.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Jiri Olsa <jolsa@redhat.com>, Namhyung Kim <namhyung@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Runzhen Wang <runzhen@linux.vnet.ibm.com>,
Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>,
Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 41/47] perf kvm: Add min and max stats to display
Date: Wed, 7 Aug 2013 18:11:08 -0300 [thread overview]
Message-ID: <1375909874-22073-42-git-send-email-acme@infradead.org> (raw)
In-Reply-To: <1375909874-22073-1-git-send-email-acme@infradead.org>
From: David Ahern <dsahern@gmail.com>
Add max and min times for exit events.
v2: address Xiao's comment to use get_event function for pulling max and
min from stats struct similar to mean and count
Signed-off-by: David Ahern <dsahern@gmail.com>
Reviewed-by: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Runzhen Wang <runzhen@linux.vnet.ibm.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/r/1375753297-69645-4-git-send-email-dsahern@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
tools/perf/builtin-kvm.c | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index 29bfca7..b6595e9 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools/perf/builtin-kvm.c
@@ -337,14 +337,19 @@ static void clear_events_cache_stats(struct list_head *kvm_events_cache)
struct list_head *head;
struct kvm_event *event;
unsigned int i;
+ int j;
for (i = 0; i < EVENTS_CACHE_SIZE; i++) {
head = &kvm_events_cache[i];
list_for_each_entry(event, head, hash_entry) {
/* reset stats for event */
- memset(&event->total, 0, sizeof(event->total));
- memset(event->vcpu, 0,
- event->max_vcpu * sizeof(*event->vcpu));
+ event->total.time = 0;
+ init_stats(&event->total.stats);
+
+ for (j = 0; j < event->max_vcpu; ++j) {
+ event->vcpu[j].time = 0;
+ init_stats(&event->vcpu[j].stats);
+ }
}
}
}
@@ -583,6 +588,8 @@ static int compare_kvm_event_ ## func(struct kvm_event *one, \
GET_EVENT_KEY(time, time);
COMPARE_EVENT_KEY(count, stats.n);
COMPARE_EVENT_KEY(mean, stats.mean);
+GET_EVENT_KEY(max, stats.max);
+GET_EVENT_KEY(min, stats.min);
#define DEF_SORT_NAME_KEY(name, compare_key) \
{ #name, compare_kvm_event_ ## compare_key }
@@ -727,20 +734,26 @@ static void print_result(struct perf_kvm_stat *kvm)
pr_info("%9s ", "Samples%");
pr_info("%9s ", "Time%");
+ pr_info("%10s ", "Min Time");
+ pr_info("%10s ", "Max Time");
pr_info("%16s ", "Avg time");
pr_info("\n\n");
while ((event = pop_from_result(&kvm->result))) {
- u64 ecount, etime;
+ u64 ecount, etime, max, min;
ecount = get_event_count(event, vcpu);
etime = get_event_time(event, vcpu);
+ max = get_event_max(event, vcpu);
+ min = get_event_min(event, vcpu);
kvm->events_ops->decode_key(kvm, &event->key, decode);
pr_info("%20s ", decode);
pr_info("%10llu ", (unsigned long long)ecount);
pr_info("%8.2f%% ", (double)ecount / kvm->total_count * 100);
pr_info("%8.2f%% ", (double)etime / kvm->total_time * 100);
+ pr_info("%8" PRIu64 "us ", min / 1000);
+ pr_info("%8" PRIu64 "us ", max / 1000);
pr_info("%9.2fus ( +-%7.2f%% )", (double)etime / ecount/1e3,
kvm_event_rel_stddev(vcpu, event));
pr_info("\n");
--
1.8.1.4
next prev parent reply other threads:[~2013-08-07 21:11 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-07 21:10 [GIT PULL 00/47] perf/core improvements and fixes Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 01/47] perf: Add PERF_EVENT_IOC_ID ioctl to return event ID Arnaldo Carvalho de Melo
2013-08-09 14:50 ` Vince Weaver
2013-08-10 12:11 ` Jiri Olsa
2013-08-07 21:10 ` [PATCH 02/47] perf: Do not get values from disabled counters in group format read Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 03/47] perf evlist: Use PERF_EVENT_IOC_ID perf ioctl to read event id Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 04/47] perf tools: Add support for parsing PERF_SAMPLE_READ sample type Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 05/47] perf evlist: Fix event ID retrieval for group format read case Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 06/47] perf evlist: Add perf_evlist__id2sid method to get event ID related data Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 07/47] perf evsel: Add PERF_SAMPLE_READ sample related processing Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 08/47] perf tools: Add 'S' event/group modifier to read sample value Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 09/47] perf tests: Add attr record group sampling test Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 10/47] perf tests: Add parse events tests for leader sampling Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 11/47] perf evsel: Actually show symbol offset in stack trace when requested Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 12/47] perf tools: Fix compile of util/tsc.c Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 13/47] perf trace: Beautify 'connect' result Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 14/47] perf python: Remove duplicate TID bit from mask Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 15/47] perf util: Add parse_nsec_time() function Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 16/47] perf top: move CONSOLE_CLEAR to header file Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 17/47] perf stats: Add max and min stats Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 18/47] perf session: Export a few functions for event processing Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 19/47] perf kvm: Split out tracepoints from record args Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 20/47] perf evlist: Remove obsolete dummy execve Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 21/47] perf evsel: Add support for enabling counters Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 22/47] perf stat: Add support for --initial-delay option Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 23/47] perf stat: Flush output after each line in interval mode Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 24/47] perf symbols: avoid SyS kernel syscall aliases Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 25/47] perf tests: Add test for reading object code Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 26/47] perf symbols: Load kernel maps before using Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 27/47] perf tools: Make it possible to read object code from vmlinux Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 28/47] perf tests: Adjust the vmlinux symtab matches kallsyms test Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 29/47] perf tools: Make it possible to read object code from kernel modules Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 30/47] perf symbols: Add support for reading from /proc/kcore Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 31/47] perf tests: Adjust the vmlinux symtab matches kallsyms test again Arnaldo Carvalho de Melo
2013-08-07 21:10 ` [PATCH 32/47] perf tests: Add kcore to the object code reading test Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 33/47] perf annotate: Allow disassembly using /proc/kcore Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 34/47] perf annotate: Put dso name in symbol annotation title Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 35/47] perf annotate: Remove nop at end of annotation Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 36/47] perf annotate: Add call target name if it is missing Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 37/47] perf annotate browser: Improve description of '?' hotkey Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 38/47] perf annotate browser: Fix typo Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 39/47] perf session: Export queue_event function Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 40/47] perf kvm: Add live mode Arnaldo Carvalho de Melo
2013-08-07 21:11 ` Arnaldo Carvalho de Melo [this message]
2013-08-07 21:11 ` [PATCH 42/47] perf kvm stat report: Add option to analyze specific VM Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 43/47] perf ui/gtk: Fix segmentation fault on perf_hpp__for_each_format loop Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 44/47] perf tools: Add support for pinned modifier Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 45/47] perf tests: Add tests of new " Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 46/47] perf machine: Do not require /lib/modules/* on a guest Arnaldo Carvalho de Melo
2013-08-07 21:11 ` [PATCH 47/47] Revert "tools lib lk: Fix for cross build" Arnaldo Carvalho de Melo
2013-08-12 8:17 ` [GIT PULL 00/47] perf/core improvements and fixes Ingo Molnar
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