| To: | Atsushi Nemoto <nemoto@toshiba-tops.co.jp> |
|---|---|
| Subject: | Re: FP exception statistics |
| From: | Ralf Baechle <ralf@oss.sgi.com> |
| Date: | Wed, 21 Nov 2001 19:25:30 +1100 |
| Cc: | linux-mips@oss.sgi.com |
| In-reply-to: | <20011121.160347.48536367.nemoto@toshiba-tops.co.jp>; from nemoto@toshiba-tops.co.jp on Wed, Nov 21, 2001 at 04:03:47PM +0900 |
| References: | <20011121.160347.48536367.nemoto@toshiba-tops.co.jp> |
| Sender: | owner-linux-mips@oss.sgi.com |
| User-agent: | Mutt/1.2.5i |
On Wed, Nov 21, 2001 at 04:03:47PM +0900, Atsushi Nemoto wrote: > Sometimes I want to know what kind of (and how many times) FP > exceptions occurred in run time. Here is a patch to provide us these > informations via /proc/cpuinfo. > > Any comments are welcome. (This patch is not tested on SMP) It get's atomicity wrong. I suggest to make such statistics a per thread thing. That'll not only solve the SMP issues but also make sure processes running in parallel won't influence the result. Ralf |
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