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Odd slowness in grep and dired modes
From: |
Smith_RS |
Subject: |
Odd slowness in grep and dired modes |
Date: |
Thu, 20 Mar 2014 23:10:52 -0700 (PDT) |
User-agent: |
G2/1.0 |
This is for NT Emacs 24.3.1 running on Windows 7.
I found a situation where NT Emacs will slow to a crawl and consume high CPU
cycles, the common behavior is directory browsing in dired or file browsing in
grep-mode where the mouse-over behavior is being used. I ran the profiler and
saw that all the time is spent in mouse-fixup-help-message.
Steps to duplicate:
- Open dired on a directory with a non trivial number of files (20 or more).
- Run the mouse over the files without selecting anything, just let the
mouse-over behavior happen.
- Do this with profiling turned on and observe thousands of calls to
mouse-fixup-help-message.
Alternately:
- Use grep-mode to search for a string that occurs in a large number of files.
- Continue as above.
I ran with Procmon, there is no specific I/O or registry activity during this
slowness that I can trace.
I tried this under Linux, I see the calls to mouse-fixup-help-message but it
doesn't jack the CPU like on Windows.
Any thoughts or ways to debug this are appreciated, as always.
Thanks.
- Odd slowness in grep and dired modes,
Smith_RS <=
- Re: Odd slowness in grep and dired modes, Eli Zaretskii, 2014/03/21
- Message not available
- Re: Odd slowness in grep and dired modes, Smith_RS, 2014/03/21
- Re: Odd slowness in grep and dired modes, Eli Zaretskii, 2014/03/21
- RE: Odd slowness in grep and dired modes, Drew Adams, 2014/03/21
- Message not available
- Re: Odd slowness in grep and dired modes, Smith_RS, 2014/03/21
- Re: Odd slowness in grep and dired modes, Eli Zaretskii, 2014/03/21
- Message not available
- Re: Odd slowness in grep and dired modes, Smith_RS, 2014/03/21
- Message not available
- Re: Odd slowness in grep and dired modes, Smith_RS, 2014/03/21