On 12/24/2014 01:24 AM, Sven Hoexter wrote: > On Tue, Dec 23, 2014 at 04:06:33PM +0100, Michael Kerrisk (man-pages) wrote: > > Hi, > >> On 12/14/2014 03:20 PM, Sven Hoexter wrote: >>> Documented as is in Documentation/filesystems/proc.txt of Linux 3.18. >>> >>> Signed-off-by: Sven Hoexter <sven@xxxxxxxxxxxxx> >>> --- >>> man5/proc.5 | 4 ++++ >>> 1 file changed, 4 insertions(+) >>> >>> diff --git a/man5/proc.5 b/man5/proc.5 >>> index 96077d0..b16f2a7 100644 >>> --- a/man5/proc.5 >>> +++ b/man5/proc.5 >>> @@ -1587,6 +1587,7 @@ VmStk: 88 kB >>> VmExe: 572 kB >>> VmLib: 1708 kB >>> VmPTE: 20 kB >>> +VmSwap: 0 kB >>> Threads: 1 >>> SigQ: 0/3067 >>> SigPnd: 0000000000000000 >>> @@ -1672,6 +1673,9 @@ Shared library code size. >>> .IR VmPTE : >>> Page table entries size (since Linux 2.6.10). >>> .IP * >>> +.IR VmSwap : >>> +Size of swap usage (the number of referred swapents). >>> +.IP * >>> .IR Threads : >>> Number of threads in process containing this thread. >>> .IP * >> >> Thanks for this patch. I've applied, and added text that the field >> appeared in Linux 2.6.34. However, I have a question: what does the >> text "(the number of referred swapents)" mean? Is this field >> not just reporting a value in kB (i.e., the number of kB across all >> swap entries)? > > I copied the text verbatim from what I found in the proc.txt > documentation. To be honest so far I failed to understand > what exactly is counted and did not trust the kB unit at all. > (It did not matter for my usecase.) > > Maybe KAMEZAWA Hiroyuki can shed some light on what exactly > is counted here and if the kB unit makes sense here and why? > > Looking at commit b084d4353ff99d824d3bc5a5c2c22c70b1fba722 > it seems to be a value incremented/decremented with every > page table entry moved to swap/moved out of swap, but I'm > far away from claiming that this is stuff I understand. Okay. Pending any input from KAMEZAWA Hiroyuki, I have simply removed the text "(the number of referred swapents)". Thanks, Michael -- Michael Kerrisk Linux man-pages maintainer; http://www.kernel.org/doc/man-pages/ Linux/UNIX System Programming Training: http://man7.org/training/ -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
