On Tue, 2005-12-06 at 11:59 -0500, Frank Ch. Eigler wrote:
Badari Pulavarty <pbadari@us.ibm.com> writes:
I am trying to collect pagecache usage info using systemtap
and I get following error, while reporting. What should I
do fix it ?
[...]
ERROR: MAXACTION exceeded near embedded-code
at /usr/local/share/systemtap/tapset/logging.stp:9:29
See http://sourceware.org/bugzilla/show_bug.cgi?id=1866
Okay, Thank you.
BTW, I am impressed with the NO (noticeable) overhead added
by having systemtap probes. Of course, I wasn't really doing
a performance measurement. I was doing untars, kernel compiles
with probes in add_to_page_cache() and remove_from_page() -
which gets called a lot and didn't make much difference in the
kernel compile time :)
time with probe:
(Totals PageAdd = 215326 PageDel = 17612)
real 3m40.492s
user 5m44.894s
sys 1m2.276s
time without probe:
real 3m40.085s
user 5m45.650s
sys 1m1.572s
Thanks,
Badari