Browse thread
Objective Caml 2.02
[
Home
]
[ Index:
by date
|
by threads
]
[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
| Date: | -- (:) |
| From: | Alexey Nogin <nogin@c...> |
| Subject: | Upgrade from OCaml 2.01 to OCaml 2.02 made things _slower_! |
Hi, After I upgraded OCaml & Camlp4 from 2.01 to 2.02, our the native code of our program became much smaller (5124462 instead of 7219378), but it also became a little slower (1.5% - 3.5% for various inputs). Do you have an idea what could have caused it? Also, I was doing some performance mesurements (using P6 performance counter support patches for Linux by Erik Hendriks - http://beowulf.gsfc.nasa.gov/software/ ) when I upgraded, so I have some information (and can get more of it) on the performance counters for my program under both 2.01 and 2.02. In particular, the number of requests from the processor to the L1 data cache became 2%-3% bigger. I am using RedHat Linux 5.2 with kernel 2.2.2 on a dual-PII/400(Xeon). Alexey -------------------------------------------------------------- Home Page: http://www.cs.cornell.edu/nogin/ E-Mail: nogin@cs.cornell.edu (office), ayn2@cornell.edu (home) Office: Upson 4139, tel: 1-607-255-4934 ICQ #: 24708107 (office), 24678341 (home)