From: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
To: Nicholas Piggin <npiggin@gmail.com>
Cc: benh@kernel.crashing.org, mpe@ellerman.id.au, anton@samba.org,
paulus@samba.org, linuxppc-dev@lists.ozlabs.org
Subject: Re: [RFC PATCH 9/9] powerpc: rewrite local_t using soft_irq
Date: Tue, 26 Jul 2016 12:11:48 +0530 [thread overview]
Message-ID: <3267ff1c-b8dd-8c28-8d3e-c5be67e31838@linux.vnet.ibm.com> (raw)
In-Reply-To: <20160726155301.568771d8@roar.ozlabs.ibm.com>
On Tuesday 26 July 2016 11:23 AM, Nicholas Piggin wrote:
> On Mon, 25 Jul 2016 20:22:22 +0530
> Madhavan Srinivasan <maddy@linux.vnet.ibm.com> wrote:
>
>> https://lkml.org/lkml/2008/12/16/450
>>
>> Modifications to Rusty's benchmark code:
>> - Executed only local_t test
>>
>> Here are the values with the patch.
>>
>> Time in ns per iteration
>>
>> Local_t Without Patch With Patch
>>
>> _inc 28 8
>> _add 28 8
>> _read 3 3
>> _add_return 28 7
>>
>> Tested the patch in a
>> - pSeries LPAR (with perf record)
> Very nice. I'd like to see these patches get in. We can
> probably use the feature in other places too.
Thanks for review.
Maddy
> Thanks,
> Nick
>
next prev parent reply other threads:[~2016-07-26 6:42 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-07-25 14:52 [RFC PATCH 0/9]powerpc: "paca->soft_enabled" based local atomic operation implementation Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 1/9] Add #defs for paca->soft_enabled flags Madhavan Srinivasan
2016-07-26 5:27 ` Nicholas Piggin
2016-07-26 6:05 ` Madhavan Srinivasan
2016-07-26 6:13 ` Nicholas Piggin
2016-07-28 13:54 ` Nicholas Piggin
2016-07-25 14:52 ` [RFC PATCH 2/9] Cleanup to use LAZY_INTERRUPT_* macros for paca->soft_enabled update Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 3/9] powerpc: move set_soft_enabled() Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 4/9] powerpc: Use set_soft_enabled api to update paca->soft_enabled Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 5/9] powerpc: reverse the soft_enable logic Madhavan Srinivasan
2016-07-26 5:31 ` Nicholas Piggin
2016-07-26 6:07 ` Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 6/9] powerpc: modify __SOFTEN_TEST to support tri-state soft_enabled flag Madhavan Srinivasan
2016-07-26 5:41 ` Nicholas Piggin
2016-07-26 6:12 ` Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 7/9] powerpc: Add support to mask perf interrupts Madhavan Srinivasan
2016-07-26 5:46 ` Nicholas Piggin
2016-07-26 6:25 ` Madhavan Srinivasan
2016-07-26 6:30 ` Nicholas Piggin
2016-07-26 6:46 ` Madhavan Srinivasan
2016-07-26 7:10 ` Nicholas Piggin
2016-07-26 7:22 ` Madhavan Srinivasan
2016-07-26 7:34 ` Nicholas Piggin
2016-07-25 14:52 ` [RFC PATCH 8/9] powerpc: Support to replay PMIs Madhavan Srinivasan
2016-07-26 5:50 ` Nicholas Piggin
2016-07-26 6:40 ` Madhavan Srinivasan
2016-07-25 14:52 ` [RFC PATCH 9/9] powerpc: rewrite local_t using soft_irq Madhavan Srinivasan
2016-07-26 5:53 ` Nicholas Piggin
2016-07-26 6:41 ` Madhavan Srinivasan [this message]
2016-07-26 12:21 ` [RFC PATCH 0/9]powerpc: "paca->soft_enabled" based local atomic operation implementation Benjamin Herrenschmidt
2016-07-26 13:42 ` Madhavan Srinivasan
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