[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [Libunwind-devel] Time Cost of Libunwind is too expensive.
From: |
Paul Pluzhnikov |
Subject: |
Re: [Libunwind-devel] Time Cost of Libunwind is too expensive. |
Date: |
Wed, 26 Nov 2014 09:30:06 -0800 |
On Tue, Nov 25, 2014 at 8:42 PM, Chenggang <address@hidden> wrote:
> All programs are wrote by C/C++, compiler is GCC/G++, the version is 4.1.2.
Please note that this compiler is quite old, and is known to produce
incomplete and/or incorrect unwind info.
That in turn causes libunwind to take slow path under some conditions
(though I believe that this is more pronounced with in-process
unwinding), and may be a contributing factor here.
--
Paul Pluzhnikov