logd: optimize code hotspots
Discovered that we had a few libc hotspots. Adjust code to generally
reduce or nullify the number of calls to malloc, free, strlen,
strcmp, strncmp, memcmp & strncasecmp. Total gain looks to be about
3% of logd's processing time. malloc still contributes to 3%, but all
others are now total 0.5%.
Bug: 23685592
Change-Id: Ife721121667969260cdb8b055524ae90f5911278
diff --git a/logd/LogStatistics.h b/logd/LogStatistics.h
index 20e630e..5a44d59 100644
--- a/logd/LogStatistics.h
+++ b/logd/LogStatistics.h
@@ -189,7 +189,7 @@
const char*getName() const { return name; }
inline void add(pid_t p) {
- if (name && !strncmp(name, "zygote", 6)) {
+ if (name && !fast<strncmp>(name, "zygote", 6)) {
free(name);
name = NULL;
}
@@ -241,7 +241,7 @@
const char*getName() const { return name; }
inline void add(pid_t t) {
- if (name && !strncmp(name, "zygote", 6)) {
+ if (name && !fast<strncmp>(name, "zygote", 6)) {
free(name);
name = NULL;
}