ddda212faa
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 |
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|---|---|---|
| .. | ||
| tests | ||
| Android.mk | ||
| CommandListener.cpp | ||
| CommandListener.h | ||
| event.logtags | ||
| FlushCommand.cpp | ||
| FlushCommand.h | ||
| libaudit.c | ||
| libaudit.h | ||
| LogAudit.cpp | ||
| LogAudit.h | ||
| LogBuffer.cpp | ||
| LogBuffer.h | ||
| LogBufferElement.cpp | ||
| LogBufferElement.h | ||
| LogCommand.cpp | ||
| LogCommand.h | ||
| logd.rc | ||
| LogKlog.cpp | ||
| LogKlog.h | ||
| LogListener.cpp | ||
| LogListener.h | ||
| LogReader.cpp | ||
| LogReader.h | ||
| LogStatistics.cpp | ||
| LogStatistics.h | ||
| LogTimes.cpp | ||
| LogTimes.h | ||
| LogUtils.h | ||
| LogWhiteBlackList.cpp | ||
| LogWhiteBlackList.h | ||
| main.cpp | ||
| README.auditd | ||
| README.property | ||
The properties that logd responds to are:
name type default description
logd.auditd bool true Enable selinux audit daemon
logd.auditd.dmesg bool true selinux audit messages duplicated and
sent on to dmesg log
logd.klogd bool depends Enable klogd daemon
logd.statistics bool depends Enable logcat -S statistics.
ro.config.low_ram bool false if true, logd.statistics & logd.klogd
default false
ro.build.type string if user, logd.statistics & logd.klogd
default false
persist.logd.logpersistd string Enable logpersist daemon, "logcatd"
turns on logcat -f in logd context
persist.logd.size number 256K default size of the buffer for all
log ids at initial startup, at runtime
use: logcat -b all -G <value>
persist.logd.size.main number 256K Size of the buffer for the main log
persist.logd.size.system number 256K Size of the buffer for the system log
persist.logd.size.radio number 256K Size of the buffer for the radio log
persist.logd.size.event number 256K Size of the buffer for the event log
persist.logd.size.crash number 256K Size of the buffer for the crash log
NB:
- number support multipliers (K or M) for convenience. Range is limited
to between 64K and 256M for log buffer sizes. Individual logs override the
global default.