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I have the following setup: Gentoo Linux, kernel 4.19.52, AMD Ryzen 5 1600, 16G of RAM (of which up to 8G is used as ramdisk - mounted as tmpfs). I have also set up 32G of swap partition. The following issue has been with me for like half a year and a couple of kernels.
When I compile relatively large applications like chromium or firefox, eventually (like half an hour into compilation) my system becomes unresponsive.
From what I have managed to observe, it seems the system starts to swap heavily (the kswapd is using significant % of the CPU), but to my surprise, the actual swap space is almost unused. It looks like for some reason the system runs out of RAM but also does not want to use the swap space.
Any hints or ideas on what to look for? Debugging of the issue is somehow difficult, as everything runs smoothly for like 30-60 mins until it "almost" hang (by that I mean the mouse moves like 1 inch per 30 secs) - which make it also unobservable :(
Maybe someone have come across this issue? I'll be grateful for any tips...
Marek
linux memory swap
migrated from serverfault.com 30 mins ago
This question came from our site for system and network administrators.
add a comment |
I have the following setup: Gentoo Linux, kernel 4.19.52, AMD Ryzen 5 1600, 16G of RAM (of which up to 8G is used as ramdisk - mounted as tmpfs). I have also set up 32G of swap partition. The following issue has been with me for like half a year and a couple of kernels.
When I compile relatively large applications like chromium or firefox, eventually (like half an hour into compilation) my system becomes unresponsive.
From what I have managed to observe, it seems the system starts to swap heavily (the kswapd is using significant % of the CPU), but to my surprise, the actual swap space is almost unused. It looks like for some reason the system runs out of RAM but also does not want to use the swap space.
Any hints or ideas on what to look for? Debugging of the issue is somehow difficult, as everything runs smoothly for like 30-60 mins until it "almost" hang (by that I mean the mouse moves like 1 inch per 30 secs) - which make it also unobservable :(
Maybe someone have come across this issue? I'll be grateful for any tips...
Marek
linux memory swap
migrated from serverfault.com 30 mins ago
This question came from our site for system and network administrators.
do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
Please edit your question to add the contents/proc/meminfoduring the problem state.
– John Mahowald
2 hours ago
add a comment |
I have the following setup: Gentoo Linux, kernel 4.19.52, AMD Ryzen 5 1600, 16G of RAM (of which up to 8G is used as ramdisk - mounted as tmpfs). I have also set up 32G of swap partition. The following issue has been with me for like half a year and a couple of kernels.
When I compile relatively large applications like chromium or firefox, eventually (like half an hour into compilation) my system becomes unresponsive.
From what I have managed to observe, it seems the system starts to swap heavily (the kswapd is using significant % of the CPU), but to my surprise, the actual swap space is almost unused. It looks like for some reason the system runs out of RAM but also does not want to use the swap space.
Any hints or ideas on what to look for? Debugging of the issue is somehow difficult, as everything runs smoothly for like 30-60 mins until it "almost" hang (by that I mean the mouse moves like 1 inch per 30 secs) - which make it also unobservable :(
Maybe someone have come across this issue? I'll be grateful for any tips...
Marek
linux memory swap
I have the following setup: Gentoo Linux, kernel 4.19.52, AMD Ryzen 5 1600, 16G of RAM (of which up to 8G is used as ramdisk - mounted as tmpfs). I have also set up 32G of swap partition. The following issue has been with me for like half a year and a couple of kernels.
When I compile relatively large applications like chromium or firefox, eventually (like half an hour into compilation) my system becomes unresponsive.
From what I have managed to observe, it seems the system starts to swap heavily (the kswapd is using significant % of the CPU), but to my surprise, the actual swap space is almost unused. It looks like for some reason the system runs out of RAM but also does not want to use the swap space.
Any hints or ideas on what to look for? Debugging of the issue is somehow difficult, as everything runs smoothly for like 30-60 mins until it "almost" hang (by that I mean the mouse moves like 1 inch per 30 secs) - which make it also unobservable :(
Maybe someone have come across this issue? I'll be grateful for any tips...
Marek
linux memory swap
linux memory swap
asked 7 hours ago
Marek
migrated from serverfault.com 30 mins ago
This question came from our site for system and network administrators.
migrated from serverfault.com 30 mins ago
This question came from our site for system and network administrators.
do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
Please edit your question to add the contents/proc/meminfoduring the problem state.
– John Mahowald
2 hours ago
add a comment |
do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
Please edit your question to add the contents/proc/meminfoduring the problem state.
– John Mahowald
2 hours ago
do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
Please edit your question to add the contents
/proc/meminfo during the problem state.– John Mahowald
2 hours ago
Please edit your question to add the contents
/proc/meminfo during the problem state.– John Mahowald
2 hours ago
add a comment |
1 Answer
1
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Modern browsers are a beast to build. Very likely the virtual memory system is moving lots of pages around, but not enough to significantly page out to disk.
Linux From Scratch reports 6+ GB memory used to build Firefox, and 1.25 GB per thread for Chromium with WebKit.
Get more memory, or reduce the number of jobs with any -j switches. Or use prebuilt binaries...
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Modern browsers are a beast to build. Very likely the virtual memory system is moving lots of pages around, but not enough to significantly page out to disk.
Linux From Scratch reports 6+ GB memory used to build Firefox, and 1.25 GB per thread for Chromium with WebKit.
Get more memory, or reduce the number of jobs with any -j switches. Or use prebuilt binaries...
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
add a comment |
Modern browsers are a beast to build. Very likely the virtual memory system is moving lots of pages around, but not enough to significantly page out to disk.
Linux From Scratch reports 6+ GB memory used to build Firefox, and 1.25 GB per thread for Chromium with WebKit.
Get more memory, or reduce the number of jobs with any -j switches. Or use prebuilt binaries...
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
add a comment |
Modern browsers are a beast to build. Very likely the virtual memory system is moving lots of pages around, but not enough to significantly page out to disk.
Linux From Scratch reports 6+ GB memory used to build Firefox, and 1.25 GB per thread for Chromium with WebKit.
Get more memory, or reduce the number of jobs with any -j switches. Or use prebuilt binaries...
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
Modern browsers are a beast to build. Very likely the virtual memory system is moving lots of pages around, but not enough to significantly page out to disk.
Linux From Scratch reports 6+ GB memory used to build Firefox, and 1.25 GB per thread for Chromium with WebKit.
Get more memory, or reduce the number of jobs with any -j switches. Or use prebuilt binaries...
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
answered 2 hours ago
John MahowaldJohn Mahowald
1212 bronze badges
1212 bronze badges
add a comment |
add a comment |
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do you have some sysctl parameter to try to fix this?
– c4f4t0r
7 hours ago
Please edit your question to add the contents
/proc/meminfoduring the problem state.– John Mahowald
2 hours ago