emo/busybox
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

powertop: code shrink

Browse Source 
function                                             old     new   delta
process_timer_stats                                  490     449     -41

Signed-off-by: Maksym Kryzhanovskyy <xmaks@email.cz>
Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>
This commit is contained in:
Maksym Kryzhanovskyy
2010-11-06 01:56:19 +01:00
committed by Denys Vlasenko
parent 9135fd26c4
commit 0ebafcc5b1
1 changed files with 13 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
procps/powertop.c
View File

@@ -399,6 +399,7 @@ static NOINLINE int process_timer_stats(void)
buf[0] = '\0';
totalticks = 0;
n = 0;
fp = NULL;
if (!G.cant_enable_timer_stats)
fp = fopen_for_read("/proc/timer_stats");
@@ -418,14 +419,24 @@ static NOINLINE int process_timer_stats(void)
const char *count, *process, *func;
char *p;
int idx;
unsigned cnt;
count = skip_whitespace(buf);
p = strchr(count, ',');
if (!p)
continue;
*p++ = '\0';
if (strcmp(skip_non_whitespace(count), " total events") == 0)
cnt = bb_strtou(count, NULL, 10);
if (strcmp(skip_non_whitespace(count), " total events") == 0) {
#if ENABLE_FEATURE_POWERTOP_PROCIRQ
n = cnt / G.total_cpus;
if (n > 0 && n < G.interrupt_0) {
sprintf(line, " <interrupt> : %s", "extra timer interrupt");
save_line(line, G.interrupt_0 - n);
}
#endif
break;
}
if (strchr(count, 'D'))
continue; /* deferred */
p = skip_whitespace(p); /* points to pid now */
@@ -471,21 +482,11 @@ static NOINLINE int process_timer_stats(void)
sprintf(line, "%15.15s : %s", process, func);
//else
// sprintf(line, "%s", process);
save_line(line, bb_strtoull(count, NULL, 10));
save_line(line, cnt);
}
fclose(fp);
}
n = 0;
#if ENABLE_FEATURE_POWERTOP_PROCIRQ
if (strstr(buf, " total events")) {
n = bb_strtoull(buf, NULL, 10) / G.total_cpus;
if (n > 0 && n < G.interrupt_0) {
sprintf(line, " <interrupt> : %s", "extra timer interrupt");
save_line(line, G.interrupt_0 - n);
}
}
#endif
return n;
}