Tixy wrote:
> >
> > Could you please clarify for me how the following is possible. `ps` shows
> > that the php-fpm workers have occupied 62% of physical memory, while
> > `free` shows that only 1.3Gi (which is 17% of total RAM) is used:
> >
> > $ ps axww -o cmd,%mem |awk '/php-fpm/{sum+=$NF}END{print sum}'
> > 62.1
> > $ free -h
> > total used free shared buff/cache
> > available
> > Mem: 7.5Gi 1.3Gi 4.4Gi 113Mi 1.8Gi
> > 5.8Gi
> > Swap: 0B 0B 0B
> > $
>
> Perhaps because the php-fpm workers were forked from the same parent
> and so a lot of theie 'physical' RAM is actually the same RAM as each
> other, because it's not been modified?I see your point, but ps(1) talks about real physical RAM: %mem %MEM ratio of the process's resident set size to the physical memory on the machine, expressed as a percentage. (alias pmem). If those php-fpm workers share a lot of virtual (?) memory between one another, shouldn't `ps` show it as such? -- Victor Sudakov, VAS4-RIPE, VAS47-RIPN 2:5005/49@fidonet http://vas.tomsk.ru/
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