From: Richard Henderson <rth@twiddle.net>
To: "Emilio G. Cota" <cota@braap.org>, qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 16/22] tcg: keep a list of TCGContext's
Date: Sun, 9 Jul 2017 10:43:12 -1000 [thread overview]
Message-ID: <2f659019-fc55-8e22-1dd2-d2c97880c4d9@twiddle.net> (raw)
In-Reply-To: <1499586614-20507-17-git-send-email-cota@braap.org>
On 07/08/2017 09:50 PM, Emilio G. Cota wrote:
> Before we make TCGContext thread-local. Once that is done, iterating
> over all TCG contexts will be quite useful; for instance we
> will need it to gather profiling info from each TCGContext.
>
> A possible alternative would be to keep an array of TCGContext pointers.
> However this option however is not that trivial, because vCPUs are spawned in
> parallel. So let's just keep it simple and use a list protected by a lock.
Do we not know the number of cpus? I would have thought that we did, via -smp.
Even cpu-hotplug would still have some sort of bounds?
Which really suggests an array would be better.
r~
next prev parent reply other threads:[~2017-07-09 20:43 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-09 7:49 [Qemu-devel] [PATCH 00/22] tcg: per-thread TCG Emilio G. Cota
2017-07-09 7:49 ` [Qemu-devel] [PATCH 01/22] vl: fix breakage of -tb-size Emilio G. Cota
2017-07-09 19:56 ` Richard Henderson
2017-07-11 15:37 ` Alex Bennée
2017-07-09 7:49 ` [Qemu-devel] [PATCH 02/22] translate-all: remove redundant !tcg_enabled check in dump_exec_info Emilio G. Cota
2017-07-09 19:57 ` Richard Henderson
2017-07-10 6:15 ` Thomas Huth
2017-07-12 12:32 ` Alex Bennée
2017-07-09 7:49 ` [Qemu-devel] [PATCH 03/22] cputlb: bring back tlb_flush_count under !TLB_DEBUG Emilio G. Cota
2017-07-09 20:00 ` Richard Henderson
2017-07-09 20:56 ` Emilio G. Cota
2017-07-09 21:20 ` Emilio G. Cota
2017-07-12 13:26 ` Alex Bennée
2017-07-12 18:19 ` Emilio G. Cota
2017-07-09 7:49 ` [Qemu-devel] [PATCH 04/22] tcg: fix corruption of code_time profiling counter upon tb_flush Emilio G. Cota
2017-07-09 20:01 ` Richard Henderson
2017-07-12 14:36 ` Alex Bennée
2017-07-12 17:09 ` Philippe Mathieu-Daudé
2017-07-09 7:49 ` [Qemu-devel] [PATCH 05/22] exec-all: fix typos in TranslationBlock's documentation Emilio G. Cota
2017-07-12 14:37 ` Alex Bennée
2017-07-09 7:49 ` [Qemu-devel] [PATCH 06/22] translate-all: make have_tb_lock static Emilio G. Cota
2017-07-09 20:02 ` Richard Henderson
2017-07-12 14:38 ` Alex Bennée
2017-07-12 18:22 ` Emilio G. Cota
2017-07-09 7:49 ` [Qemu-devel] [PATCH 07/22] tcg/i386: constify tcg_target_callee_save_regs Emilio G. Cota
2017-07-09 20:02 ` Richard Henderson
2017-07-12 14:39 ` Alex Bennée
2017-07-12 17:00 ` Philippe Mathieu-Daudé
2017-07-09 7:50 ` [Qemu-devel] [PATCH 08/22] tcg/mips: " Emilio G. Cota
2017-07-09 20:02 ` Richard Henderson
2017-07-12 14:39 ` Alex Bennée
2017-07-12 17:01 ` Philippe Mathieu-Daudé
2017-07-09 7:50 ` [Qemu-devel] [PATCH 09/22] exec-all: shrink tb->invalid to uint8_t Emilio G. Cota
2017-07-09 20:11 ` Richard Henderson
2017-07-10 23:57 ` Emilio G. Cota
2017-07-12 0:53 ` Richard Henderson
2017-07-12 20:48 ` Emilio G. Cota
2017-07-12 23:06 ` Richard Henderson
2017-07-16 1:43 ` Emilio G. Cota
2017-07-16 7:22 ` Richard Henderson
2017-07-09 7:50 ` [Qemu-devel] [PATCH 10/22] exec-all: move tb->invalid to the end of the struct Emilio G. Cota
2017-07-09 7:50 ` [Qemu-devel] [PATCH 11/22] translate-all: use a binary search tree to track TBs in TBContext Emilio G. Cota
2017-07-09 20:33 ` Richard Henderson
2017-07-09 21:01 ` Emilio G. Cota
2017-07-12 15:10 ` Alex Bennée
2017-07-12 18:38 ` Emilio G. Cota
2017-07-09 7:50 ` [Qemu-devel] [PATCH 12/22] translate-all: report correct avg host TB size Emilio G. Cota
2017-07-12 15:25 ` Alex Bennée
2017-07-12 18:45 ` Emilio G. Cota
2017-07-09 7:50 ` [Qemu-devel] [PATCH 13/22] tcg: take tb_ctx out of TCGContext Emilio G. Cota
2017-07-12 15:27 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 14/22] tcg: take .helpers " Emilio G. Cota
2017-07-09 20:35 ` Richard Henderson
2017-07-12 15:28 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 15/22] gen-icount: fold exitreq_label into TCGContext Emilio G. Cota
2017-07-09 20:36 ` Richard Henderson
2017-07-12 15:29 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 16/22] tcg: keep a list of TCGContext's Emilio G. Cota
2017-07-09 20:43 ` Richard Henderson [this message]
2017-07-12 15:32 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 17/22] tcg: distribute profiling counters across TCGContext's Emilio G. Cota
2017-07-09 20:45 ` Richard Henderson
2017-07-09 21:14 ` Emilio G. Cota
2017-07-09 21:44 ` Richard Henderson
2017-07-10 16:00 ` Emilio G. Cota
2017-07-09 7:50 ` [Qemu-devel] [PATCH 18/22] tcg: define TCG_HIGHWATER Emilio G. Cota
2017-07-09 20:46 ` Richard Henderson
2017-07-12 15:33 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 19/22] tcg: introduce tcg_context_clone Emilio G. Cota
2017-07-09 20:48 ` Richard Henderson
2017-07-09 21:04 ` Emilio G. Cota
2017-07-12 16:02 ` Alex Bennée
2017-07-12 17:25 ` Richard Henderson
2017-07-12 17:47 ` Alex Bennée
2017-07-09 7:50 ` [Qemu-devel] [PATCH 20/22] tcg: dynamically allocate from code_gen_buffer using equally-sized regions Emilio G. Cota
2017-07-09 21:03 ` Richard Henderson
2017-07-09 7:50 ` [Qemu-devel] [PATCH 21/22] tcg: enable per-thread TCG for softmmu Emilio G. Cota
2017-07-09 21:07 ` Richard Henderson
2017-07-09 21:19 ` Richard Henderson
2017-07-09 21:29 ` Emilio G. Cota
2017-07-09 21:48 ` Richard Henderson
2017-07-10 3:54 ` Emilio G. Cota
2017-07-10 12:05 ` Paolo Bonzini
2017-07-10 21:14 ` Emilio G. Cota
2017-07-10 21:33 ` Paolo Bonzini
2017-07-10 22:13 ` Emilio G. Cota
2017-07-11 8:02 ` Paolo Bonzini
2017-07-09 7:50 ` [Qemu-devel] [PATCH 22/22] translate-all: do not hold tb_lock during code generation in softmmu Emilio G. Cota
2017-07-09 21:38 ` Richard Henderson
2017-07-10 3:51 ` Emilio G. Cota
2017-07-10 5:59 ` Richard Henderson
2017-07-10 15:28 ` Emilio G. Cota
2017-07-09 18:27 ` [Qemu-devel] [PATCH 00/22] tcg: per-thread TCG Emilio G. Cota
2017-07-10 9:50 ` Alex Bennée
2017-07-10 17:04 ` Richard Henderson
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