High CPU Usage in React-Native
I'm working to reduce the CPU load on an RN app. I've built the app to a device, in release, and trimmed the console logs from the project. Even after doing this the app is still around 33% CPU usage on a mostly blank screen.
The interesting part is that occasionally, after about 6 minutes, the CPU frees up and drops to 3-4%. I suspect that a really long loop has completed but am unable to find it.
I've run the app in Xcode's Instruments, it's only on iOS atm, and found some interesting things. From the looks of it, it's gotten into a long chain of [CALayer renderInContext] which is coming from UVVideoRecorder. I'm not familiar with UVVideoRecorder and would love to hear any thoughts people might have.
Call Stack + Threads
xcode performance react-native cpu-usage
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
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I'm working to reduce the CPU load on an RN app. I've built the app to a device, in release, and trimmed the console logs from the project. Even after doing this the app is still around 33% CPU usage on a mostly blank screen.
The interesting part is that occasionally, after about 6 minutes, the CPU frees up and drops to 3-4%. I suspect that a really long loop has completed but am unable to find it.
I've run the app in Xcode's Instruments, it's only on iOS atm, and found some interesting things. From the looks of it, it's gotten into a long chain of [CALayer renderInContext] which is coming from UVVideoRecorder. I'm not familiar with UVVideoRecorder and would love to hear any thoughts people might have.
Call Stack + Threads
xcode performance react-native cpu-usage
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
add a comment |
I'm working to reduce the CPU load on an RN app. I've built the app to a device, in release, and trimmed the console logs from the project. Even after doing this the app is still around 33% CPU usage on a mostly blank screen.
The interesting part is that occasionally, after about 6 minutes, the CPU frees up and drops to 3-4%. I suspect that a really long loop has completed but am unable to find it.
I've run the app in Xcode's Instruments, it's only on iOS atm, and found some interesting things. From the looks of it, it's gotten into a long chain of [CALayer renderInContext] which is coming from UVVideoRecorder. I'm not familiar with UVVideoRecorder and would love to hear any thoughts people might have.
Call Stack + Threads
xcode performance react-native cpu-usage
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
I'm working to reduce the CPU load on an RN app. I've built the app to a device, in release, and trimmed the console logs from the project. Even after doing this the app is still around 33% CPU usage on a mostly blank screen.
The interesting part is that occasionally, after about 6 minutes, the CPU frees up and drops to 3-4%. I suspect that a really long loop has completed but am unable to find it.
I've run the app in Xcode's Instruments, it's only on iOS atm, and found some interesting things. From the looks of it, it's gotten into a long chain of [CALayer renderInContext] which is coming from UVVideoRecorder. I'm not familiar with UVVideoRecorder and would love to hear any thoughts people might have.
Call Stack + Threads
xcode performance react-native cpu-usage
xcode performance react-native cpu-usage
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
asked Nov 14 '18 at 19:11
James DunayJames Dunay
1,39773260
1,39773260
add a comment |
add a comment |
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