[llvm-dev] llvm-exegesis

Luka Ercegovcevic via llvm-dev
Thu, 30 Aug 2018 16:07:25 -0000

Hi Clement,

I updated my OS from Ubuntu 16.04.10 to Ubuntu 18.04.1, and now it works fine.

-------- Original Message --------
Subject: Re: llvm-exegesis
Date: Wednesday, August 29, 2018 21:24 CEST
From: Clement Courbet <courbet at google.com>
To: Luka Ercegovcevic <Luka.Ercegovcevic at rt-rk.com>
CC: llvm-dev <llvm-dev at lists.llvm.org>, Petar Jovanovic
<Petar.Jovanovic at rt-rk.com>, clément courbet <clement.courbet at
gmail.com>
References: <3315-5b72f500-3-172feea0 at 222762487>


 Hi Luka, some distributions require you to allow perf event access
(see https://reviews.llvm.org/D47572), have you done that ? On Tue, Aug 14, 2018
at 5:28 PM, Luka Ercegovcevic <Luka.Ercegovcevic at rt-rk.com> wrote:Hi
everyone,

Can someone help me with running llvm-exegesis tool on x86_64? I saw that I need
libpfm library, but I'm still getting segmentation fault when I try to run
the tool. Is there anything else I need to do (build llvm on some specific way)
?
This is how I tried to run this tool: llvm-exegesis -mode=latency
-opcode-name=ADD64rr

Thanks,
Luka

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