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Re: Cygwin on Win10 much slower than Win7
- From: cyg Simple <cygsimple at gmail dot com>
- To: cygwin at cygwin dot com
- Date: Thu, 2 Nov 2017 09:41:26 -0400
- Subject: Re: Cygwin on Win10 much slower than Win7
- Authentication-results: sourceware.org; auth=none
- References: <BN6PR2001MB107455088015357A0BDC8551F15F0@BN6PR2001MB1074.namprd20.prod.outlook.com> <CAOTD34YCpVaEcGn1C_9Y6zjf3dA=1ytth2OhkwpFTR-CF9VV3g@mail.gmail.com>
- Reply-to: cygwin at cygwin dot com
On 11/2/2017 9:36 AM, Erik Bray wrote:
> On Wed, Nov 1, 2017 at 3:50 PM, Nellis, Kenneth wrote:
>> Since migrating from a Windows 7 laptop to one with Windows
>> 10, I've noticed a significant speed decrease in opening a
>> mintty/bash window from about 0.5s to 3.5s.
>> I've narrowed it down to two bottlenecks in .bash_profile:
>> to "cygpath" and "source".
>> Each invocation of cygpath on Win10 takes about 0.12s while
>> on Win7 takes only 0.016s. Both are running 64-bit Cygwin
>> 2.9.0, and cygpath version 2.9.0.
>> The files being sourced are the same, but for example, one
>> file, .bash_aliases, only contains alias statements and a
>> few variable assignments. On Win7, "time" says it takes
>> 0.000s, but on Win10 it takes 0.023s.
>> The Win7 CPU is "i7-4600M @ 2.90 GHz 2.90 GHz" while the
>> Win10 CPU is "i7-6600U @ 2.60 GHz 2.81 GHz". I can't imagine
>> this difference accounts for a 10x speed difference. Also the
>> Win10 machine has an SSD compared to the Win7 machine's SCSI
>> hard disk, which would favor the Win10 machine.
>> I was wondering if anyone else noticed such a thing or could
>> account for this speed difference. Can I simply blame Windows
> There could be a real issue here, but for what it's worth I haven't
> noticed such extreme slowdown. But I don't have a Windows 7 machine
> to compare to. I upgrade the one I'm on now from Windows 7 to Windows
> 10 over a year ago, so if there ever was a difference maybe I just got
> use to it and didn't notice.
Maybe a network drive connection timeout issue. Are all of the drives
that were mapped in Win7 still reachable in Win10?
> I don't recall any major issues when I first upgraded either though ¯\_(ツ)_/¯
I don't recall any either.
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