Find number of dirty pages (modified pages) for a process
Clash Royale CLAN TAG#URR8PPP
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I am trying to track the rate at which pages are being modified by a process in Linux and I came across this Soft Dirty PTEs which certainly can help me.
I was also able to find a c script that makes use of maps and pagemap to get me the PTEs parsed along with the dirty bit at this SO Answer - pagemap_dump.c.
However, when I do run this for any process, I always see 0 in the soft-dirty bit field. I have tried by giving PID of Stress running memory tests (-m option malloc()/free()) and I still get all 0 in soft-dirty bit. I am not sure if that is the correct behavior.
Has anyone been able to correctly extract the soft-dirty bits from this? OR is there another way of getting the number of dirty pages for a process without modifying the kernel?
I am running Ubuntu 14.04.5 LTS with 3.13.0-128-generic kernel.
And I have also tried this on Ubuntu 16.04.4 LTS with 4.4.0-116-generic kernel.
ubuntu memory process-management
asked 12 mins ago
Wajahat
165110
add a comment |Â
up vote
0
down vote
favorite
I am trying to track the rate at which pages are being modified by a process in Linux and I came across this Soft Dirty PTEs which certainly can help me.
I was also able to find a c script that makes use of maps and pagemap to get me the PTEs parsed along with the dirty bit at this SO Answer - pagemap_dump.c.
However, when I do run this for any process, I always see 0 in the soft-dirty bit field. I have tried by giving PID of Stress running memory tests (-m option malloc()/free()) and I still get all 0 in soft-dirty bit. I am not sure if that is the correct behavior.
Has anyone been able to correctly extract the soft-dirty bits from this? OR is there another way of getting the number of dirty pages for a process without modifying the kernel?
I am running Ubuntu 14.04.5 LTS with 3.13.0-128-generic kernel.
And I have also tried this on Ubuntu 16.04.4 LTS with 4.4.0-116-generic kernel.
ubuntu memory process-management
asked 12 mins ago
Wajahat
165110
add a comment |Â
up vote
0
down vote
favorite
up vote
0
down vote
favorite
I am trying to track the rate at which pages are being modified by a process in Linux and I came across this Soft Dirty PTEs which certainly can help me.
I was also able to find a c script that makes use of maps and pagemap to get me the PTEs parsed along with the dirty bit at this SO Answer - pagemap_dump.c.
However, when I do run this for any process, I always see 0 in the soft-dirty bit field. I have tried by giving PID of Stress running memory tests (-m option malloc()/free()) and I still get all 0 in soft-dirty bit. I am not sure if that is the correct behavior.
Has anyone been able to correctly extract the soft-dirty bits from this? OR is there another way of getting the number of dirty pages for a process without modifying the kernel?
I am running Ubuntu 14.04.5 LTS with 3.13.0-128-generic kernel.
And I have also tried this on Ubuntu 16.04.4 LTS with 4.4.0-116-generic kernel.
ubuntu memory process-management
asked 12 mins ago
Wajahat
165110
I am trying to track the rate at which pages are being modified by a process in Linux and I came across this Soft Dirty PTEs which certainly can help me.
I was also able to find a c script that makes use of maps and pagemap to get me the PTEs parsed along with the dirty bit at this SO Answer - pagemap_dump.c.
However, when I do run this for any process, I always see 0 in the soft-dirty bit field. I have tried by giving PID of Stress running memory tests (-m option malloc()/free()) and I still get all 0 in soft-dirty bit. I am not sure if that is the correct behavior.
Has anyone been able to correctly extract the soft-dirty bits from this? OR is there another way of getting the number of dirty pages for a process without modifying the kernel?
I am running Ubuntu 14.04.5 LTS with 3.13.0-128-generic kernel.
And I have also tried this on Ubuntu 16.04.4 LTS with 4.4.0-116-generic kernel.
ubuntu memory process-management
ubuntu memory process-management
asked 12 mins ago
Wajahat
165110
asked 12 mins ago
Wajahat
165110
asked 12 mins ago
Wajahat
165110
asked 12 mins ago
Wajahat
165110
asked 12 mins ago
Wajahat
165110
165110
add a comment |Â
add a comment |Â
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