From: Nikunj Dadhania <nikunj.dadhania@gmail.com>
To: David Gibson <david@gibson.dropbear.id.au>
Cc: Richard Henderson <rth@twiddle.net>,
qemu-ppc@nongnu.org, qemu-devel@nongnu.org,
Bharata B Rao <bharata@linux.vnet.ibm.com>
Subject: Re: [Qemu-devel] [Qemu-ppc] [PATCH v3 03/10] target/ppc: support for 32-bit carry and overflow
Date: Fri, 24 Feb 2017 06:11:30 +0530 [thread overview]
Message-ID: <CALAZu3_3TkjFbLUAraQRgG5Ytm0a08QLzQSdYLKF5EYPD-imxA@mail.gmail.com> (raw)
In-Reply-To: <20170223225358.GD17615@umbus.fritz.box>
On 24 February 2017 at 04:23, David Gibson <david@gibson.dropbear.id.au> wrote:
> On Fri, Feb 24, 2017 at 09:34:32AM +1100, Richard Henderson wrote:
>> On 02/23/2017 05:40 PM, Nikunj A Dadhania wrote:
>> > Richard Henderson <rth@twiddle.net> writes:
>> > > These functions are becoming quite large. Are they performance critical enough
>> > > that they need to stay as inline code, or should they be moved to helpers and
>> > > share code with cpu_read/write_xer?
>> >
>> > Just to boot to login prompt, these are the numbers for gen_read/write_xer:
>> >
>> > helper_myprint - rd_count 231103, wr_count 68897
>> >
>> > And it keeps on incrementing, maybe scope of optimization here.
>>
>> That's not very large considering the total number of instructions executed
>> during a boot to prompt.
>>
>> Thoughts, David?
>
> Hm, I'm not clear if that's the number of executions, or the number of
> translations.
That is number of executions.
Regards
Nikunj
next prev parent reply other threads:[~2017-02-24 0:41 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-22 11:44 [Qemu-devel] [PATCH v3 00/10] POWER9 TCG enablements - part15 Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 01/10] target/ppc: move cpu_[read, write]_xer to cpu.c Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 02/10] target/ppc: optimize gen_write_xer() Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 03/10] target/ppc: support for 32-bit carry and overflow Nikunj A Dadhania
2017-02-22 17:17 ` Richard Henderson
2017-02-22 17:20 ` Richard Henderson
2017-02-23 6:40 ` Nikunj A Dadhania
2017-02-23 22:34 ` Richard Henderson
2017-02-23 22:53 ` David Gibson
2017-02-24 0:41 ` Nikunj Dadhania [this message]
2017-02-24 4:50 ` [Qemu-devel] [Qemu-ppc] " David Gibson
2017-02-24 6:30 ` Richard Henderson
2017-02-27 1:39 ` David Gibson
2017-02-23 3:21 ` [Qemu-devel] " David Gibson
2017-02-23 5:09 ` Nikunj A Dadhania
2017-02-23 5:32 ` David Gibson
2017-02-23 7:02 ` Nikunj A Dadhania
2017-02-23 9:29 ` David Gibson
2017-02-23 22:36 ` Richard Henderson
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 04/10] target/ppc: update ca32 in arithmetic add Nikunj A Dadhania
2017-02-22 17:20 ` Richard Henderson
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 05/10] target/ppc: update ca32 in arithmetic substract Nikunj A Dadhania
2017-02-22 17:21 ` Richard Henderson
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 06/10] target/ppc: update overflow flags for add/sub Nikunj A Dadhania
2017-02-22 17:26 ` Richard Henderson
2017-02-23 4:46 ` Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 07/10] target/ppc: use tcg ops for neg instruction Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 08/10] target/ppc: add ov32 flag for multiply low insns Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 09/10] target/ppc: add ov32 flag in divide operations Nikunj A Dadhania
2017-02-22 11:44 ` [Qemu-devel] [PATCH v3 10/10] target/ppc: add mcrxrx instruction Nikunj A Dadhania
2017-02-23 3:27 ` [Qemu-devel] [PATCH v3 00/10] POWER9 TCG enablements - part15 David Gibson
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