a67d8a53c7
- Deal with __android_log_is_loggable inside signal handler by treating a lock contention system call as more costly than reading the associated property directly. Rather waiting around in a contended stat to hit cache. - Check both the individual known __system_property_serial() and global __system_property_area_serial() to detect updates or additions to the properties to respond in the most aggressive and timely manner. __android_log_is_loggable() return at max CPU clockrate on a N9 in 61ns. - Craft a common do_cache2 inline that adds the above to the other functions that utilize cache handling and preserves (within 3ns) performance in android_log_clockid() and __android_log_security(). These functions return at max CPU clockrate on a N9 in 23ns. Bug: 19544788 Bug: 25693940 Bug: 25792367 Bug: 26178938 Change-Id: I9cd94598f5c558e946b93977ad3714a4b03d0422 |
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| .. | ||
| Android.mk | ||
| benchmark.h | ||
| benchmark_main.cpp | ||
| libc_test.cpp | ||
| liblog_benchmark.cpp | ||
| liblog_test.cpp | ||