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From: "Emilio G. Cota" <cota@braap.org>
To: Richard Henderson <richard.henderson@linaro.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line
Date: Fri, 16 Nov 2018 10:07:42 -0500	[thread overview]
Message-ID: <20181116150742.GA19283@flamenco> (raw)
In-Reply-To: <00eece57-cd7d-f4da-c3ec-6bcfbf82b2f2@linaro.org>

On Fri, Nov 16, 2018 at 09:07:50 +0100, Richard Henderson wrote:
> On 11/16/18 6:10 AM, Emilio G. Cota wrote:
> > It's possible that newer machines with larger reorder buffers
> > will be able to take better advantage of the higher instruction
> > locality, hiding the latency of having to execute more instructions.
> > I'll test on Skylake tomorrow.
> 
> I've noticed that the code we generate for calls has twice as many instructions
> as really needed for setting up the arguments.  I have a plan to fix that,
> which hopefully will solve this problem.

Ah that's great. I'll do more tests and a full review when those
changes come out, then.

Thanks,

		E.

  reply	other threads:[~2018-11-16 15:07 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-12 21:44 [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 01/17] tcg/i386: Add constraints for r8 and r9 Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 02/17] tcg/i386: Return a base register from tcg_out_tlb_load Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 03/17] tcg/i386: Change TCG_REG_L[01] to not overlap function arguments Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 04/17] tcg/i386: Force qemu_ld/st arguments into fixed registers Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 05/17] tcg: Return success from patch_reloc Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 06/17] tcg: Add TCG_TARGET_NEED_LDST_OOL_LABELS Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 07/17] tcg/i386: Use TCG_TARGET_NEED_LDST_OOL_LABELS Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 08/17] tcg/aarch64: Add constraints for x0, x1, x2 Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 09/17] tcg/aarch64: Parameterize the temps for tcg_out_tlb_read Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 10/17] tcg/aarch64: Parameterize the temp for tcg_out_goto_long Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 11/17] tcg/aarch64: Use B not BL " Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 12/17] tcg/aarch64: Use TCG_TARGET_NEED_LDST_OOL_LABELS Richard Henderson
2018-11-12 21:44 ` [Qemu-devel] [PATCH for-4.0 13/17] tcg/arm: Parameterize the temps for tcg_out_tlb_read Richard Henderson
2018-11-12 21:45 ` [Qemu-devel] [PATCH for-4.0 14/17] tcg/arm: Add constraints for R0-R5 Richard Henderson
2018-11-12 21:45 ` [Qemu-devel] [PATCH for-4.0 15/17] tcg/arm: Reduce the number of temps for tcg_out_tlb_read Richard Henderson
2018-11-12 21:45 ` [Qemu-devel] [PATCH for-4.0 16/17] tcg/arm: Force qemu_ld/st arguments into fixed registers Richard Henderson
2018-11-12 21:45 ` [Qemu-devel] [PATCH for-4.0 17/17] tcg/arm: Use TCG_TARGET_NEED_LDST_OOL_LABELS Richard Henderson
2018-11-13  9:00 ` [Qemu-devel] [PATCH for-4.0 00/17] tcg: Move softmmu out-of-line no-reply
2018-11-14  1:00 ` Emilio G. Cota
2018-11-15 11:32   ` Richard Henderson
2018-11-15 18:48     ` Emilio G. Cota
2018-11-15 18:54       ` Richard Henderson
2018-11-15 22:04       ` Richard Henderson
2018-11-16  1:13         ` Emilio G. Cota
2018-11-16  5:10           ` Emilio G. Cota
2018-11-16  8:07             ` Richard Henderson
2018-11-16 15:07               ` Emilio G. Cota [this message]
2018-11-16  8:10           ` Richard Henderson
2018-11-16 15:10             ` Emilio G. Cota

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