Re: [squid-users] squid and gprof

You should specify the -pg argument to CFLAGS when running configure,
alternatively edit all makefiles to add it to CFLAGS.

You can also specify custom CFLAGS settings by specifying the AM_CFLAGS
variable when running make.

Note: Unfortunately gprof does not have enough resolution to correctly
profile Squid in a reliable manner. The results will not give very
accurate information. gprof works well for traditional structured
programs with a straight call graph, but not at all well for event
driven programs like Squid. The errors when you sum very many small
values with low resolution (== large rounding errors) adds up to very
large errors in the calculation.

I would recommended to try to use the native profiling timers built in
to Squid-3. These provide very accurate timings (Intel CPU with
profiling timers required).

Regards
Henrik

fre 2003-06-06 klockan 10.53 skrev Jack:
> Hello All,
>
> I tried to compile the squid wirh grof. So i added the "-pg" cflag in the
> src/Makefile.
>
> CFLAGS = -g -pg -O2 -Wall -D_REENTRANT
>
> When i make the source i am getting the following error
>
> gcc -DHAVE_CONFIG_H -DDEFAULT_CONFIG_FILE=\"/usr/local/squid25S3_1/etc/squid
> .conf\" -I. -I. -I../include -I. -I. -I../include -I../include -g -pg -O2
> -Wall -D_REENTRANT -c `test -f cf_gen.c || echo './'`cf_gen.c
> gcc -g -pg -O2 -Wall -D_REENTRANT -g -o cf_gen
> cf_gen.o -L../lib -lmiscutil -lpthread -lm -lresolv -lbsd -lnsl
> ./cf_gen cf.data
> make[1]: *** [cf_parser.h] Segmentation fault
> make[1]: Leaving directory `/usr/local/src/squid-2.5.STABLE3/src'
> make: *** [all-recursive] Error 1
>
> Can anyone guide me where to pass this "-pg" compiler argument correctly.
>
> Regards,
> Jack

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