From: Tarjei Jensen <tarjei99@gmail.com>
Subject: Re: How many CPU cores?
Date: Sat, 14 Oct 2017 13:55:03 -0700 (PDT)
Date: 2017-10-14T13:55:03-07:00 [thread overview]
Message-ID: <f78edbfc-e9f6-40da-ac3b-59b37255ae3d@googlegroups.com> (raw)
In-Reply-To: <oqudb4$1e1b$1@gioia.aioe.org>
If you are on windows, a "disk" might be your limiting factor. Use perfmon to monitor your logical disk drives. Go to Performance Monitor and add Physical disk -> % Idle Time for each available disk device.
It will tell you when Windows runs out of I/O for each disk. That is when % Idle Time for a logical disk is 0.
In Windows, logical disk I/O is a limited resource. You can have several logical disks pointing to the same physical device or use the same physical interface.
So in order to get I/O performance, you need to spread the load.
So having all your source code on the system drive (Usually C:) is a really bad idea.
If you are on something that is Unix-like, there is a number of options to get I/O statistics. Including the old faithful "sar". Determining how the system perfores will include a lot of interpretation of numbers.
prev parent reply other threads:[~2017-10-14 20:55 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-02 22:07 How many CPU cores? Victor Porton
2017-10-13 22:55 ` Kevin K
2017-10-14 5:29 ` Per Sandberg
2017-10-14 20:55 ` Tarjei Jensen [this message]
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