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bug#20843: 24.5; Profiler error: "Invalid sampling interval"

From: Ken Brown
Subject: bug#20843: 24.5; Profiler error: "Invalid sampling interval"
Date: Mon, 22 Jun 2015 17:15:15 -0400
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0

On 6/22/2015 11:12 AM, Eli Zaretskii wrote:
Date: Mon, 22 Jun 2015 07:57:13 -0400
From: Ken Brown <address@hidden>
CC: Eli Zaretskii <address@hidden>, address@hidden

For me to understand, does this mean we never will be able to start the
profiler under Cygwin Emacs?

I wouldn't say "never".  According to the Cygwin API documentation
(https://cygwin.com/cygwin-api/std-notes.html), "getitimer and setitimer only
support ITIMER_REAL for now."  I'll ask on the Cygwin list about the possibility
of supporting ITIMER_PROF.

If what Corinna suggested on the Cygwin list doesn't fit the bill,
perhaps consider reusing the w32 code, which emulates setitimer, and
does support ITIMER_PROF well enough for the profiler to be usable.

Corinna's suggestion seems to work. I'll apply a patch shortly so that Seb can test it.


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