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Message-ID: <1447091207.91534.481.camel@freebsd.org>
Subject: Re: CPU underload
From: Ian Lepore <ian@freebsd.org>
To: Eugene Grosbein <eugen@grosbein.net>, Adrian Chadd <adrian@freebsd.org>
Cc: "freebsd-mips@freebsd.org" <freebsd-mips@freebsd.org>
Date: Mon, 09 Nov 2015 10:46:47 -0700
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On Tue, 2015-11-10 at 00:42 +0700, Eugene Grosbein wrote:
> On 10.11.2015 00:39, Ian Lepore wrote:
> > On Sun, 2015-11-08 at 11:23 -0800, Adrian Chadd wrote:
> > > ok, what's the l1 cache size reported at boot up?
> > > 
> > > I think I may just bump them all to 64.
> > 
> > 64 is not some kind of magic panacea.  The value needs to be set to
> > the
> > cache line size for the runtime platform.  If the right value is
> > 32,
> > then setting it to 64 will just waste memory.
> 
> Is it for instruction cache or for data cache?

Only the data cache size matters for USB_HOST_ALIGN.

-- Ian