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Commit 721c9dc1 authored by Keun-young Park's avatar Keun-young Park
Browse files

reduce flunctuation in boot animation start / stopping time 

- Add separate 100ms interval polling for SurfaceFlinger. Otherwise,
  it can be blocked with 1 sec polling and cause 1 sec of additional
  delay frequently.

bug: 38450031
bug: 35253872
Test: many reboots and check time to finish boot animation, python packages/services/Car/tools/bootanalyze/bootanalyze.py -r -c packages/services/Car/tools/bootanalyze/config.yaml -n 100 -f -e 15 -w 30 -v

Change-Id: I353ca04183cbe59b82da99dc3fecfce63314cd2f
parent 1ba237d2

cmds/bootanimation/bootanimation_main.cpp

+24 −0
Original line number Diff line number Diff line
@@ -16,12 +16,16 @@ 


#define LOG_TAG "BootAnimation"



#include <stdint.h>

#include <inttypes.h>



#include <binder/IPCThreadState.h>

#include <binder/ProcessState.h>

#include <binder/IServiceManager.h>

#include <cutils/properties.h>

#include <sys/resource.h>

#include <utils/Log.h>

#include <utils/SystemClock.h>

#include <utils/threads.h>



#include "BootAnimation.h"
@@ -47,6 +51,26 @@ int main() 
        sp<ProcessState> proc(ProcessState::self());

        ProcessState::self()->startThreadPool();



        // TODO: replace this with better waiting logic in future, b/35253872

        int64_t waitStartTime = elapsedRealtime();

        sp<IServiceManager> sm = defaultServiceManager();

        const String16 name("SurfaceFlinger");

        const int SERVICE_WAIT_SLEEP_MS = 100;

        const int LOG_PER_RETRIES = 10;

        int retry = 0;

        while (sm->checkService(name) == nullptr) {

            retry++;

            if ((retry % LOG_PER_RETRIES) == 0) {

                ALOGW("Waiting for SurfaceFlinger, waited for %" PRId64 " ms",

                      elapsedRealtime() - waitStartTime);

            }

            usleep(SERVICE_WAIT_SLEEP_MS * 1000);

        };

        int64_t totalWaited = elapsedRealtime() - waitStartTime;

        if (totalWaited > SERVICE_WAIT_SLEEP_MS) {

            ALOGI("Waiting for SurfaceFlinger took %" PRId64 " ms", totalWaited);

        }



        // create the boot animation object

        sp<BootAnimation> boot = new BootAnimation();