On Wed, 14 Feb 2001, Franco Finstad wrote:
> I have a modper/DBI/Oracle8i/solaris2.7 site and I'm having performance
> problem because I have too many apache processes that are too big. The
> machine grinds to a crawl for a normal amount of users.
>
> The problem is that at server startup I immediately have a bunch of apache
> process that are already using swap,
It's ok on Solaris.
> but I have 4GB of RAM. What's going
> on??
Try
MaxRequestsPerChild from 50 to 100
in httpd.conf
This because mod_perl is not freeing memory after serve any request.
>
> See the output of top below.
>
> It looks like the apache processes are not using all the available memory.
> From top, RES gets lower than SIZE, why?
> Should I adjust RLimitMEM, and if so, how to I determine the correct value?
>
> Any help is greatly appreciated.
>
> ********** Output of top *************
> load averages: 0.06, 0.07, 0.07
> 18:11:14
> 120 processes: 119 sleeping, 1 on cpu
> CPU states: 94.7% idle, 0.0% user, 5.0% kernel, 0.3% iowait, 0.0% swap
> Memory: 4096M real, 2834M free, 1235M swap in use, 6252M swap free
>
> PID USERNAME THR PRI NICE SIZE RES STATE TIME CPU COMMAND
> 501 oracle 1 0 0 2480K 2048K sleep 6:14 2.02% top
> 1511 ffinstad 1 0 0 2440K 2064K cpu2 0:01 1.92% top
> 906 nobody 9 58 0 46M 22M sleep 0:12 0.07% beans_adapter_e
> 1501 ffinstad 1 48 0 1824K 1344K sleep 0:00 0.06% ksh
> 393 oracle 1 58 0 374M 347M sleep 0:01 0.02% oracle
> 163 root 5 58 0 2848K 2280K sleep 0:00 0.02% automountd
> 114 root 6 50 0 2288K 1440K sleep 0:00 0.01% keyserv
> 196 root 8 50 0 2768K 2328K sleep 0:00 0.01% nscd
> 1499 root 1 38 0 1760K 1368K sleep 0:00 0.00% in.telnetd
> 1163 nobody 4 48 0 33M 21M sleep 0:04 0.00% httpsd
> 1162 nobody 4 58 0 33M 20M sleep 0:04 0.00% httpsd
> 1232 oracle 1 2 0 374M 351M sleep 0:03 0.00% oracle
> 1153 nobody 4 50 0 33M 21M sleep 0:03 0.00% httpsd
> 1235 oracle 1 52 0 374M 352M sleep 0:03 0.00% oracle
> 1164 nobody 4 58 0 33M 21M sleep 0:03 0.00% httpsd
>
>
> ************** perl5 configuration ***************
> Embedded Perl version 5.00503 for Stronghold/2.4.2 Apache/1.3.6 C2NetEU/2412
> (Unix) mod_perl/1.21
>
> Apache::DBI 0.87
> DBI 1.13
> DBD::Oracle 1.06
>
> Summary of my perl5 (5.0 patchlevel 5 subversion 3) configuration:
> Platform:
> osname=solaris, osvers=2.7, archname=sun4-solaris
> uname='sunos cabinet 5.7 generic_106541-05 sun4u sparc sunw,ultra-5_10 '
> hint=recommended, useposix=true, d_sigaction=define
> usethreads=undef useperlio=undef d_sfio=undef
> Compiler:
> cc='gcc', optimize='-O', gccversion=2.8.1
> cppflags='-I/usr/local/include'
> ccflags ='-I/usr/local/include'
> stdchar='char', d_stdstdio=define, usevfork=false
> intsize=4, longsize=4, ptrsize=4, doublesize=8
> d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16
> alignbytes=8, usemymalloc=y, prototype=define
> Linker and Libraries:
> ld='gcc', ldflags =' -L/usr/local/lib'
> libpth=/usr/local/lib /lib /usr/lib /usr/ccs/lib
> libs=-lsocket -lnsl -ldl -lm -lc -lcrypt
> libc=/lib/libc.so, so=so, useshrplib=false, libperl=libperl.a
> Dynamic Linking:
> dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags=' '
> cccdlflags='-fPIC', lddlflags='-G -L/usr/local/lib'
>
>
>
>
>
Vasily Petrushin
+7 (095) 2508363
http://www.interfax.ru
mailto:[EMAIL PROTECTED]
