I've installed GHC-5.02 (and the profiling libraries) for Windows platforms (I have Windows98 running on my machine), but everytime I try to check the heap profiling for a program, I always get an empty graph (as the one attached). I'm sure I am doing the right steps (compiling the program with "-prof -auto-all" option, executing it with "+RTS -h" and then calling hp2ps). Any suggestions? -- Andre
I've installed GHC-5.02 (and the profiling libraries) for Windows
Turn down the context switching time and/or the delta between
profiling samples, e.g., to get the max amount of data, do
prog +RTS -h -C0 -i0
--sigbjorn
----- Original Message -----
From: "Andre W B Furtado"
(I have Windows98 running on my machine), but everytime I try to check the heap profiling for a program, I always get an empty graph (as the one attached). I'm sure I am doing the right steps (compiling the program with "-prof -auto-all" option, executing it with "+RTS -h" and then calling hp2ps).
Any suggestions?
-- Andre
Turn down the context switching time and/or the delta between profiling samples, e.g., to get the max amount of data, do
prog +RTS -h -C0 -i0
When I did this, the size of the .ps file increased, but I'm still getting an empty graph... Can anyone compile the following simple program with GHC-5.02(.1) under a Windows platform and check how the heap profile looks like? main = print (f 25 + g 25) f n = nfib n g n = nfib (n `div` 2) nfib n = if n < 2 then 1 else nfib (n-1) + nfib (n-2) -- Andre
I forgot to take into account that you're working on a Win98
box. The case is that profiling has never been supported on
that OS (any Win9x box, really), for lazy implementor reasons
mostly.
I've added a Win9x solution that will work (but the timer resolution
is not as good as on an NT-based OS) -- next release should have
this included. For ghc-5.02.1 users, download
http://www.galois.com/~sof/Stats.p_o
and include it when linking a profiling-based application (or, if you're
comfortable using 'ar' to replace entries in an archive, update libHSrts_p.a
to include the above Stats.p_o instead).
hth
--sigbjorn
----- Original Message -----
From: "Andre W B Furtado"
Turn down the context switching time and/or the delta between profiling samples, e.g., to get the max amount of data, do
prog +RTS -h -C0 -i0
When I did this, the size of the .ps file increased, but I'm still getting an empty graph... Can anyone compile the following simple program with GHC-5.02(.1) under a Windows platform and check how the heap profile looks like?
main = print (f 25 + g 25) f n = nfib n g n = nfib (n `div` 2) nfib n = if n < 2 then 1 else nfib (n-1) + nfib (n-2)
-- Andre
participants (2)
-
Andre W B Furtado -
Sigbjorn Finne