FreeBSD is very slow when Memory chip sizes are imbalanced in slots

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Mar 18 11:54:59 UTC 2013


In message <CAFHbX1KkD7fWP+KZNrSjzCStUM_Smjw7GdKDTo=DjjMoe5ttGA at mail.gmail.com>, Tom Evans writes:

>You say this, have you actually measured/checked. sysutils/dmidecode
>will interrogate your BIOS and tell us what it thinks is installed in
>each RAM socket. It is not uncommon for RAM to say one thing on the
>outside, and report something completely different to the BIOS.

I can only second Tom's call for a proper scientific approach to 
debugging this issue, rather than just assume that it is the
operating systems fault.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.


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