QML animation make large load of CPU core I.MX6
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I have embedded device with Freescale I.MX6 SoC. I compile Qt5.3.1 from source with support OpenGL and when I run my application I have very large use cores of I.MX6 instead use GPU at max. Other more complex animations use core of CPU even greater. Look at the htop screenshot. If I build my QML application for Windows Angle CPU of PC load at 2...3% - all work at GPU at maximum. Does works OpenGLat I.MX6 correctly or for embedded Qt is it normally (i mean great load core CPU)?
source:
@import QtQuick 2.2
import QtQuick.Window 2.1
import QtQuick.Controls 1.2
import QtQuick.Controls.Styles 1.2Window {
visible: true
width: 360
height: 360MouseArea {
anchors.fill: parent
onClicked: {
Qt.quit();
}
}ProgressBar {
anchors.fill: parent
anchors.margins: 40indeterminate: true
style: ProgressBarStyle {
background: Rectangle {
radius: 2
color: "lightgray"
border.color: "gray"
border.width: 1
implicitWidth: 200
implicitHeight: 24
}
progress: Rectangle {
border.color: "steelblue"
color: "lightsteelblue"// Indeterminate animation by animating alternating stripes: Item { anchors.fill: parent anchors.margins: 1 visible: control.indeterminate clip: true Row { Repeater { Rectangle { color: index % 2 ? "steelblue" : "lightsteelblue" width: 20 ; height: control.height } model: control.width / 20 + 2 } XAnimator on x { from: 0 ; to: 40 loops: Animation.Infinite running: control.indeterminate duration: 600 } } }
}
}
}}
@and screenshot of htop
!http://i66.fastpic.ru/big/2014/0818/00/c2af377719628b9aae70675641b83000.png(screenshot)! -
IMX-6 has single dual and quad core versions, open GL uses more Ram and heavily loads the core it is better to use IMx-6 Quad core with 512 0r 1GB RAM the processor is designed for audio video applications but still it gets hot very quickly even when running light weight applications..........
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thank you for reply.
Examples from Vivante load core of CPU more less then Qt application - 5...10%.
If I use ListView and scroll content by finger "left-rigth" - core CPU loaded by render thread even more (upto 70% and more)...
So is it normally, or it is wrong use compiler options, or something else?P.S If I use qml animation, power consumption is increases +5 watt. Explicitly GPU is activated. But the CPU core is loaded very hardly too.