From: Michael Schmitz <schmitzmic@gmail.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Linux/m68k <linux-m68k@lists.linux-m68k.org>,
Linux Kernel Development <linux-kernel@vger.kernel.org>,
Will Deacon <will@kernel.org>
Subject: Re: [PATCH 0/5] Rewrite Motorola MMU page-table layout
Date: Fri, 31 Jan 2020 08:12:23 +1300 [thread overview]
Message-ID: <c4d3efbe-2d91-c5e4-aa9e-680ffd0d5c89@gmail.com> (raw)
In-Reply-To: <20200130081623.GW14879@hirez.programming.kicks-ass.net>
Peter,
On 30/01/20 9:16 PM, Peter Zijlstra wrote:
> Hi Michael,
>
> On Thu, Jan 30, 2020 at 08:31:13PM +1300, Michael Schmitz wrote:
>
>> Not much difference:
>>
>> total used free shared buffers cached
>> Mem: 10712 10120 592 0 1860 2276
>> -/+ buffers/cache: 5984 4728
>> Swap: 2097144 1552 2095592
>>
>>
>> vs. vanilla 5.5rc5:
>> total used free shared buffers cached
>> Mem: 10716 10104 612 0 1588 2544
>> -/+ buffers/cache: 5972 4744
>> Swap: 2097144 1296 2095848
>>
>> By sheer coincidence, the boot with your patch series happened to run a full
>> filesystem check on the root filesystem, so I'd say it got a good workout
>> re: paging and swapping (even though it's just a paltry 4 GB).
> Sweet!, can I translate this into a Tested-by: from you?
If the test coverage is sufficient, you may certainly do that.
Cheers,
Michael
>
>> Haven't tried any VM stress testing yet (not sure what to do for that; it's
>> been years since I tried that sort of stuff).
> I think, this not being SMP, doing what you just did tickled just about
> everything there is.
>
> There is one more potential issue with MMU-gather / TLB invalidate on
> m68k (and a whole bunch of other archs) and I have patches for that
> (although I now need to redo the m68k one.
>
> Meanwhile the build robot gifted me with a build issue, and Will had
> some nitpicks, so I'll go respin and repost these patches.
next prev parent reply other threads:[~2020-01-30 19:12 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-29 10:39 [PATCH 0/5] Rewrite Motorola MMU page-table layout Peter Zijlstra
2020-01-29 10:39 ` [PATCH 1/5] m68k,mm: Restructure motorola mmu " Peter Zijlstra
2020-01-29 10:39 ` [PATCH 2/5] m68k,mm: Improve kernel_page_table() Peter Zijlstra
2020-01-29 10:39 ` [PATCH 3/5] m68k,mm: Use table allocator for pgtables Peter Zijlstra
2020-01-29 12:11 ` Will Deacon
2020-01-29 12:24 ` Peter Zijlstra
2020-01-29 10:39 ` [PATCH 4/5] m68k,mm: Extend table allocator for multiple sizes Peter Zijlstra
2020-01-29 12:17 ` Will Deacon
2020-01-29 12:43 ` Peter Zijlstra
2020-01-29 13:15 ` Will Deacon
2020-01-29 10:39 ` [PATCH 5/5] m68k,mm: Fully initialize the page-table allocator Peter Zijlstra
2020-01-29 10:49 ` [PATCH 0/5] Rewrite Motorola MMU page-table layout John Paul Adrian Glaubitz
2020-01-29 11:54 ` Peter Zijlstra
2020-01-29 12:05 ` John Paul Adrian Glaubitz
2020-01-29 12:30 ` Peter Zijlstra
2020-01-29 18:52 ` Michael Schmitz
2020-01-29 19:31 ` Peter Zijlstra
2020-01-30 7:31 ` Michael Schmitz
2020-01-30 8:16 ` Peter Zijlstra
2020-01-30 19:12 ` Michael Schmitz [this message]
2020-01-31 6:31 ` Greg Ungerer
2020-01-31 9:38 ` Will Deacon
2020-01-31 10:22 ` Peter Zijlstra
2020-01-31 11:14 ` Peter Zijlstra
2020-01-31 11:18 ` Will Deacon
2020-01-31 11:31 ` Peter Zijlstra
2020-01-31 11:43 ` Will Deacon
2020-01-31 13:04 ` Greg Ungerer
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