[linux-audio-user] latency test problem

[anton]

Hi,
I want to measure the latency of my linux box before installing the low lat 
kernel. I found  the latencytest0.42-png program.
When compiling I get some warnings (see below) 


anton at stereocilia:~/latencytest0.42-png> make
gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c latencytest.c
latencytest.c: In function `main':
latencytest.c:156: warning: passing arg 2 of `signal' from incompatible 
pointer type
latencytest.c:157: warning: passing arg 2 of `signal' from incompatible 
pointer type
gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c gfx.c
gcc -o latencytest latencytest.o gfx.o -lm -lgd -lpng
gcc -Wall -O2 -DUSE_PENTIUM_TIMER -c rtc_latencytest.c
rtc_latencytest.c: In function `main':
rtc_latencytest.c:142: warning: passing arg 2 of `signal' from incompatible 
pointer type
rtc_latencytest.c:143: warning: passing arg 2 of `signal' from incompatible 
pointer type
gcc -o rtc_latencytest rtc_latencytest.o gfx.o -lm -lgd -lpng

Running ./do_tests  gives me lots of errors:

anton at stereocilia:~/latencytest0.42-png> ./do_tests
mlockall() failed, exiting. mlock: Operation not permitted
x11perf - X11 performance program, version 1.5
The XFree86 Project, Inc server version 40200000 on :0.0
from stereocilia
Sun Nov 10 18:03:41 2002

Sync time adjustment is 0.1274 msecs.

  20000 reps @   0.4161 msec (  2400.0/sec): Scroll 500x500 pixels
	 [more output here]

   1200 reps @   5.9190 msec (   169.0/sec): ShmPutImage 500x500 square
  	 [more output here]

mv: cannot stat `out.png': No such file or directory
mlockall() failed, exiting. mlock: Operation not permitted
mv: cannot stat `out.png': No such file or directory
mlockall() failed, exiting. mlock: Operation not permitted
head: /dev/zero: invalid number of bytes
mv: cannot stat `out.png': No such file or directory
-rw-r--r--    1 anton    users           0 2002-11-10 18:05 tmpfile
mlockall() failed, exiting. mlock: Operation not permitted
mv: cannot stat `out.png': No such file or directory
-rw-r--r--    1 anton    users           0 2002-11-10 18:05 tmpfile
-rw-r--r--    1 anton    users           0 2002-11-10 18:05 tmpfile2
mlockall() failed, exiting. mlock: Operation not permitted
-rw-r--r--    1 anton    users           0 2002-11-10 18:05 tmpfile
-rw-r--r--    1 anton    users           0 2002-11-10 18:05 tmpfile2
mv: cannot stat `out.png': No such file or directory

I am using Suse 8.1 with the default 2.4.19 kernel. It is probably something 
very stupid but I cannot figure out what. Any help would be appreciated.

Regards 
Anton