I have a very similar setup, with even way more exceptions added, but
none of them has the desired effect. Unfortunately, the only way to make
MsMpEng shut up is to disable run-time protection completely for the
time of the build. I think it's a bug in Defender.
On a 20 core system it saves ~30 seconds. On 8 core it could be way more.
-hb-
On 3/17/17 4:26 AM, Ben Kelly wrote:
Hi all,
I'm trying to configure my new windows build machine and noticed that
builds were still somewhat slow. I did:
1) Put it in high performance power profile
2) Made sure my mozilla-central dir was not being indexed for search
3) Excluded my mozilla-central directory from windows defender
Watching the task monitor during a build, though, I still saw MsMpEng.exe
(antivirus) running during the build.
I ended up added some very broad exclusions to get this down close to
zero. I am now excluding:
- mozilla-central checkout
- mozilla-build install dir
- visual studio install dir
- /users/bkelly/appdada/local/temp
- /users/bkelly (because temp dir was not enough)
I'd like to narrow this down a bit. Does anyone have a better list of
things to exclude from virus scanning for our build process?
Thanks.
Ben
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