I tried RCTL for the first time, so maybe it is error on my side.
I have system with 2 jail with the following rctl.conf
jail:fox:swapuse:log=32M
jail:fox:swapuse:deny=512M
jail:fox:memoryuse:log=3G
jail:fox:memoryuse:deny=4096M
jail:olymp:swapuse:log=32M
jail:olymp:swapuse:deny=512M
jail:olymp:memoryuse:log=2G
jail:olymp:memoryuse:deny=3072M
Both jails are small webservers with PHP + Apache. They do not use much
memory and they really do not user any swap space. (according to top and
swapinfo)
# swapinfo -h
Device 1K-blocks Used Avail Capacity
/dev/mirror/gm0s1b 16777216 0B 16G 0%
# rctl -hu jail:fox | grep swap
swapuse=0
Processes in both jails are logged as using more than 32MB of swap:
Mar 21 01:18:55 neon kernel: rctl: rule "jail:fox:swapuse:log=33554432"
matched by pid 20783 (httpd), uid 80, jail fox
Mar 21 01:18:55 neon kernel: rctl: rule "jail:fox:swapuse:log=33554432"
matched by pid 20787 (httpd), uid 80, jail fox
Mar 21 01:18:58 neon kernel: rctl: rule "jail:fox:swapuse:log=33554432"
matched by pid 19207 (httpd), uid 80, jail fox
Mar 21 01:18:58 neon kernel: rctl: rule "jail:fox:swapuse:log=33554432"
matched by pid 20790 (sh), uid 0, jail fox
Mar 21 01:18:58 neon kernel: rctl: rule "jail:fox:swapuse:log=33554432"
matched by pid 20792 (sh), uid 0, jail fox
Mar 21 01:18:58 neon kernel: rctl: rule
"jail:olymp:swapuse:log=33554432" matched by pid 20793 (sh), uid 0, jail
olymp
Mar 21 01:18:58 neon kernel: rctl: rule
"jail:olymp:swapuse:log=33554432" matched by pid 20795 (sh), uid 0, jail
olymp
Is it expected? I do not think so.
Or am I doing something wrong with rctl?
# uname -srmi
FreeBSD 10.1-RELEASE-p8 amd64 GEN_RCTL
Kernel is GENERIC + RCTL options
Miroslav Lachman
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