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Re: [PATCH] Disable fast softints on OMAP (was Re: Status of current on ARM? )

On Nov 13, 2008, at 11:47 PM, Mikko Rapeli wrote:

On Thu, Nov 13, 2008 at 08:56:43PM -0500, Rafal Boni wrote:
On Wed, Nov 12, 2008 at 08:46:55AM +0200, Mikko Rapeli wrote:
On Tue, Nov 04, 2008 at 11:51:34AM +0200, Mikko Rapeli wrote:
The current kernel is not very well tuned for OMAP 2420 since it takes 2 minutes and 44 seconds to boot it to the "Enter pathname of shell..." point. In comparison our kernel branch takes 19 seconds. Userspace was the
same yesterdays current on both.

An update to the slow boot: current from Aug 5th 2008 boots in 23
seconds. Changes since then have slowed the kernel considerably on OMAP

Just as a datapoint, this isn't generic to all the evbarm targets; my PXA250 boots an INSTALL kernel (gzip'ed, with ramdisk) from WinCE in 35-40 sec, and from the point of the 2nd-stage loader handing control to the kernel it's ~ 5
sec to sysinst running.

This is propably because __HAVE_FAST_SOFTINTS isn't enabled on your target

Just to note that __HAVE_FAST_SOFTINTS is working again.

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