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Commit 90f7c373 authored by Zhijun He's avatar Zhijun He
Browse files

Camera3Device: add prop to disable sched fifo 

to disable sched fifo:
adb root
adb shell setprop camera.fifo.disable 1

Bug: 30898724

Change-Id: Ic3d1d15f9deb36b49e7d710d60fac969a98a1730
parent 15223ec2

services/camera/libcameraservice/device3/Camera3Device.cpp

+15 −9
Original line number Diff line number Diff line
@@ -42,6 +42,7 @@ 
#include <utils/Log.h>

#include <utils/Trace.h>

#include <utils/Timers.h>

#include <cutils/properties.h>



#include <android/hardware/camera2/ICameraDeviceUser.h>
@@ -2037,6 +2038,10 @@ status_t Camera3Device::configureStreamsLocked() { 
    // across configure_streams() calls

    mRequestThread->configurationComplete(mIsConstrainedHighSpeedConfiguration);



    char value[PROPERTY_VALUE_MAX];

    property_get("camera.fifo.disable", value, "0");

    int32_t disableFifo = atoi(value);

    if (disableFifo != 1) {

        // Boost priority of request thread to SCHED_FIFO.

        pid_t requestThreadTid = mRequestThread->getTid();

        res = requestPriority(getpid(), requestThreadTid,
@@ -2047,6 +2052,7 @@ status_t Camera3Device::configureStreamsLocked() { 
        } else {

            ALOGD("Set real time priority for request queue thread (tid %d)", requestThreadTid);

        }

    }



    // Update device state