/*
 * Copyright (C) 2011, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
 *
 * Refactored from builtin-top.c, see that files for further copyright notes.
 *
 * Released under the GPL v2. (and only v2, not any later version)
 */

#include "cpumap.h"
#include "event.h"
#include "evlist.h"
#include "evsel.h"
#include "parse-events.h"
#include "symbol.h"
#include "top.h"
#include <inttypes.h>

#define SNPRINTF(buf, size, fmt, args...) \
({ \
	size_t r = snprintf(buf, size, fmt, ## args); \
	r > size ?  size : r; \
})

size_t perf_top__header_snprintf(struct perf_top *top, char *bf, size_t size)
{
	float samples_per_sec;
	float ksamples_per_sec;
	float esamples_percent;
	struct record_opts *opts = &top->record_opts;
	struct target *target = &opts->target;
	size_t ret = 0;

	if (top->samples) {
		samples_per_sec = top->samples / top->delay_secs;
		ksamples_per_sec = top->kernel_samples / top->delay_secs;
		esamples_percent = (100.0 * top->exact_samples) / top->samples;
	} else {
		samples_per_sec = ksamples_per_sec = esamples_percent = 0.0;
	}

	if (!perf_guest) {
		float ksamples_percent = 0.0;

		if (samples_per_sec)
			ksamples_percent = (100.0 * ksamples_per_sec) /
							samples_per_sec;
		ret = SNPRINTF(bf, size,
			       "   PerfTop:%8.0f irqs/sec  kernel:%4.1f%%"
			       "  exact: %4.1f%% [", samples_per_sec,
			       ksamples_percent, esamples_percent);
	} else {
		float us_samples_per_sec = top->us_samples / top->delay_secs;
		float guest_kernel_samples_per_sec = top->guest_kernel_samples / top->delay_secs;
		float guest_us_samples_per_sec = top->guest_us_samples / top->delay_secs;

		ret = SNPRINTF(bf, size,
			       "   PerfTop:%8.0f irqs/sec  kernel:%4.1f%% us:%4.1f%%"
			       " guest kernel:%4.1f%% guest us:%4.1f%%"
			       " exact: %4.1f%% [", samples_per_sec,
			       100.0 - (100.0 * ((samples_per_sec - ksamples_per_sec) /
						 samples_per_sec)),
			       100.0 - (100.0 * ((samples_per_sec - us_samples_per_sec) /
						 samples_per_sec)),
			       100.0 - (100.0 * ((samples_per_sec -
						  guest_kernel_samples_per_sec) /
						 samples_per_sec)),
			       100.0 - (100.0 * ((samples_per_sec -
						  guest_us_samples_per_sec) /
						 samples_per_sec)),
			       esamples_percent);
	}

	if (top->evlist->nr_entries == 1) {
		struct perf_evsel *first = perf_evlist__first(top->evlist);
		ret += SNPRINTF(bf + ret, size - ret, "%" PRIu64 "%s ",
				(uint64_t)first->attr.sample_period,
				opts->freq ? "Hz" : "");
	}

	ret += SNPRINTF(bf + ret, size - ret, "%s", perf_evsel__name(top->sym_evsel));

	ret += SNPRINTF(bf + ret, size - ret, "], ");

	if (target->pid)
		ret += SNPRINTF(bf + ret, size - ret, " (target_pid: %s",
				target->pid);
	else if (target->tid)
		ret += SNPRINTF(bf + ret, size - ret, " (target_tid: %s",
				target->tid);
	else if (target->uid_str != NULL)
		ret += SNPRINTF(bf + ret, size - ret, " (uid: %s",
				target->uid_str);
	else
		ret += SNPRINTF(bf + ret, size - ret, " (all");

	if (target->cpu_list)
		ret += SNPRINTF(bf + ret, size - ret, ", CPU%s: %s)",
				top->evlist->cpus->nr > 1 ? "s" : "",
				target->cpu_list);
	else {
		if (target->tid)
			ret += SNPRINTF(bf + ret, size - ret, ")");
		else
			ret += SNPRINTF(bf + ret, size - ret, ", %d CPU%s)",
					top->evlist->cpus->nr,
					top->evlist->cpus->nr > 1 ? "s" : "");
	}

	return ret;
}

void perf_top__reset_sample_counters(struct perf_top *top)
{
	top->samples = top->us_samples = top->kernel_samples =
	top->exact_samples = top->guest_kernel_samples =
	top->guest_us_samples = 0;
}
='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='c8f325a59cfc718d13a50fbc746ed9b415c25e92'/><input type='hidden' name='id2' value='bf29bddf0417a4783da3b24e8c9e017ac649326f'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=c8f325a59cfc718d13a50fbc746ed9b415c25e92&amp;id2=bf29bddf0417a4783da3b24e8c9e017ac649326f'>Diffstat</a> (limited to 'include/sound/emu10k1.h')</div><table summary='diffstat' class='diffstat'>