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[OPTIM] halog: minor speedup by using unlikely()

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By moving the filter-specific code out of the loop, we can slightly
speed it up (3%).
This commit is contained in:
Willy Tarreau 2010-05-05 12:20:19 +02:00
parent 1769a18f62
commit 2651ac3302
1 changed files with 6 additions and 6 deletions
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12
contrib/halog/halog.c
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@ -440,7 +440,7 @@ int main(int argc, char **argv)
linenum++;
test = 1;
if (filter & FILT_TIME_RESP) {
if (unlikely(filter & FILT_TIME_RESP)) {
int tps;
/* only report lines with response times larger than filter_time_resp */
@ -473,7 +473,7 @@ int main(int argc, char **argv)
test &= (tps >= filter_time_resp) ^ !!(filter & FILT_INVERT_TIME_RESP);
}
if (filter & FILT_ERRORS_ONLY) {
if (unlikely(filter & FILT_ERRORS_ONLY)) {
/* only report erroneous status codes */
b = field_start(line, STATUS_FIELD + skip_fields);
if (!*b) {
@ -492,7 +492,7 @@ int main(int argc, char **argv)
if (!test)
continue;
if (filter & (FILT_ACC_COUNT|FILT_ACC_DELAY)) {
if (unlikely(filter & (FILT_ACC_COUNT|FILT_ACC_DELAY))) {
b = field_start(line, ACCEPT_FIELD + skip_fields);
if (!*b) {
truncated_line(linenum, line);
@ -512,7 +512,7 @@ int main(int argc, char **argv)
continue;
}
if (filter & (FILT_GRAPH_TIMERS|FILT_PERCENTILE)) {
if (unlikely(filter & (FILT_GRAPH_TIMERS|FILT_PERCENTILE))) {
int f;
b = field_start(line, TIME_FIELD + skip_fields);
@ -593,7 +593,7 @@ int main(int argc, char **argv)
continue;
}
if (filter & FILT_COUNT_STATUS) {
if (unlikely(filter & FILT_COUNT_STATUS)) {
b = field_start(line, STATUS_FIELD + skip_fields);
if (!*b) {
truncated_line(linenum, line);
@ -608,7 +608,7 @@ int main(int argc, char **argv)
/* all other cases mean we just want to count lines */
tot++;
if (!(filter & FILT_COUNT_ONLY))
if (unlikely(!(filter & FILT_COUNT_ONLY)))
puts(line);
}