RE: memory foorprint of kernel modules
From: Gopi Palaniappan
Date: Thu Feb 12 2004 - 17:37:00 EST
Hi Richard:
I am not sure looking at the ksyms will give me an actual measure.
Lets take an example,
I have a driver "foo.o" that i insmod, lets say. If this driver uses kmalloc
or malloc to dynamically
utilize RAM space for its internal operation, I don't think your suggested
method will capture
that dynamic allocation of memory, am i correct?
I want to get a real-time ram usage of a specified dynamically loaded
module.
thanks,
Gopi
On Thu, 12 Feb 2004, Gopi Palaniappan wrote:
> Is there an easy way to measure the memory/RAM footprint of dynamically
> loaded kernel modules?
> Are there tools similar to "pmap" for this purpose?
>
>
You might make some sense of /proc/ksyms...
This is for a module called ramdisk.
Script started on Thu Feb 12 15:41:10 2004
cd /proc
# strings ksyms | grep ramdisk
[ramdisk]
[ramdisk]
d4a19510 __insmod_ramdisk_S.bss_L4
[ramdisk]
d4a19100 __insmod_ramdisk_S.rodata_L563
d4a18000
__insmod_ramdisk_O/root/Message-Based/drivers/target/ramdisk.o_M4027E0AD_V13
2120
d4a18054 __insmod_ramdisk_S.text_L4237
d4a19398 __insmod_ramdisk_S.data_L5
[ramdisk]
# exit
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