Which process uses what pages?
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I have memory fragmented on my Linux system. Is there a way to find out what pages (in terms of order) and how many of them are used by each process running?
linux rhel memory
asked Jun 7 at 11:16
sys463
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up vote
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I have memory fragmented on my Linux system. Is there a way to find out what pages (in terms of order) and how many of them are used by each process running?
linux rhel memory
asked Jun 7 at 11:16
sys463
889
you mean open files by each process...lsof
– SivaPrasath
Jun 7 at 11:18
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I knowlsofshows the amount of files opened by process.
– sys463
Jun 7 at 11:22
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30
add a comment |Â
up vote
2
down vote
favorite
up vote
2
down vote
favorite
I have memory fragmented on my Linux system. Is there a way to find out what pages (in terms of order) and how many of them are used by each process running?
linux rhel memory
asked Jun 7 at 11:16
sys463
889
I have memory fragmented on my Linux system. Is there a way to find out what pages (in terms of order) and how many of them are used by each process running?
linux rhel memory
asked Jun 7 at 11:16
sys463
889
asked Jun 7 at 11:16
sys463
889
asked Jun 7 at 11:16
sys463
889
asked Jun 7 at 11:16
sys463
889
889
you mean open files by each process...lsof
– SivaPrasath
Jun 7 at 11:18
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I knowlsofshows the amount of files opened by process.
– sys463
Jun 7 at 11:22
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30
add a comment |Â
you mean open files by each process...lsof
– SivaPrasath
Jun 7 at 11:18
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I knowlsofshows the amount of files opened by process.
– sys463
Jun 7 at 11:22
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30
you mean open files by each process...
lsof– SivaPrasath
Jun 7 at 11:18
you mean open files by each process...
lsof– SivaPrasath
Jun 7 at 11:18
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I know
lsof shows the amount of files opened by process.– sys463
Jun 7 at 11:22
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I know
lsof shows the amount of files opened by process.– sys463
Jun 7 at 11:22
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30
add a comment |Â
1 Answer
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You can get information from /proc/<PID>/maps.
Example:
$ cat /proc/3618/maps
00400000-005ce000 r-xp 00000000 fd:00 78541 /usr/sbin/<service>
007cd000-00811000 rw-p 001cd000 fd:00 78541 /usr/sbin/<service>
If you are concerned by pages which are really in RAM, use mincore & msync
answered Jun 7 at 11:35
SivaPrasath
4,26711939
add a comment |Â
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
1
down vote
You can get information from /proc/<PID>/maps.
Example:
$ cat /proc/3618/maps
00400000-005ce000 r-xp 00000000 fd:00 78541 /usr/sbin/<service>
007cd000-00811000 rw-p 001cd000 fd:00 78541 /usr/sbin/<service>
If you are concerned by pages which are really in RAM, use mincore & msync
answered Jun 7 at 11:35
SivaPrasath
4,26711939
add a comment |Â
up vote
1
down vote
You can get information from /proc/<PID>/maps.
Example:
$ cat /proc/3618/maps
00400000-005ce000 r-xp 00000000 fd:00 78541 /usr/sbin/<service>
007cd000-00811000 rw-p 001cd000 fd:00 78541 /usr/sbin/<service>
If you are concerned by pages which are really in RAM, use mincore & msync
answered Jun 7 at 11:35
SivaPrasath
4,26711939
add a comment |Â
up vote
1
down vote
up vote
1
down vote
You can get information from /proc/<PID>/maps.
Example:
$ cat /proc/3618/maps
00400000-005ce000 r-xp 00000000 fd:00 78541 /usr/sbin/<service>
007cd000-00811000 rw-p 001cd000 fd:00 78541 /usr/sbin/<service>
If you are concerned by pages which are really in RAM, use mincore & msync
answered Jun 7 at 11:35
SivaPrasath
4,26711939
You can get information from /proc/<PID>/maps.
Example:
$ cat /proc/3618/maps
00400000-005ce000 r-xp 00000000 fd:00 78541 /usr/sbin/<service>
007cd000-00811000 rw-p 001cd000 fd:00 78541 /usr/sbin/<service>
If you are concerned by pages which are really in RAM, use mincore & msync
answered Jun 7 at 11:35
SivaPrasath
4,26711939
answered Jun 7 at 11:35
SivaPrasath
4,26711939
answered Jun 7 at 11:35
SivaPrasath
4,26711939
answered Jun 7 at 11:35
SivaPrasath
4,26711939
4,26711939
add a comment |Â
add a comment |Â
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you mean open files by each process...
lsof– SivaPrasath
Jun 7 at 11:18
@SivaPrasath, I mean memory pages used by long-running processes. For instance, the process has memory cache, caching some strings with different length (from 4Kb to 128Kb). Is there a way to find out how many memory pages does the process uses for each page order? In my case I don't know what process fragments memory... As far as I know
lsofshows the amount of files opened by process.– sys463
Jun 7 at 11:22
Do you mean how a process uses its virtual memory? Or the physical memory backing that virtual memory? And, is there some practical issue with measurable effects related to this?
– ilkkachu
Jun 7 at 12:12
@ilkkachu, I think, physical memory. My system is suffering from memory fragmentation, that's why I'm asking. I've posted a question here some time ago. unix.stackexchange.com/questions/440155/…
– sys463
Jun 7 at 12:30