From patchwork Fri Apr 21 13:24:13 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Wu, Fei" X-Patchwork-Id: 13220013 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B2660C77B7D for ; Fri, 21 Apr 2023 13:25:43 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1ppqlO-0001Dl-4p; Fri, 21 Apr 2023 09:25:22 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppqlL-00014A-Or for qemu-devel@nongnu.org; Fri, 21 Apr 2023 09:25:19 -0400 Received: from mga05.intel.com ([192.55.52.43]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1ppqlJ-0003Mk-IP for qemu-devel@nongnu.org; Fri, 21 Apr 2023 09:25:19 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1682083517; x=1713619517; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Y0ZpXw5w1L+wV1VOoDF+rpMnJxQnje3Ws+zndxkNz9Q=; b=n13T56XKNa4Ufo4/1kCSODfalGFQnCxRjV9kfzIoYtYr13MOwawVaFHh b17aXjBszQh3v33xMxeJh/cFeyVSWkUm8Be6NOAsOTjVU8hw9FQhq6mcx Ibs1Jrz377uegOIO6UAW/b/6c9+BjH52y4kyNXuSoriaUAjKiWqpfgzZf /5ebsP4Na0s6oDWo7nHdJIeBI/Ekg0AtZ9rq52F1sDqVBvo82HFbT79ml LYqXWd1qx9kDQLzsWttgqkHQnW4nF2grLLDt+u2vRL6j0T5rIsCK1AqRY vSDI9f0LnNj9QOMcJ9UAkGVbM6AqTuchQRB//mj1jOudIpFqQhvdDk+4a Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="432268350" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="432268350" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Apr 2023 06:25:16 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10686"; a="756906026" X-IronPort-AV: E=Sophos;i="5.99,214,1677571200"; d="scan'208";a="756906026" Received: from wufei-optiplex-7090.sh.intel.com ([10.238.200.247]) by fmsmga008.fm.intel.com with ESMTP; 21 Apr 2023 06:25:15 -0700 From: Fei Wu To: alex.bennee@linaro.org, richard.henderson@linaro.org, qemu-devel@nongnu.org Cc: Paolo Bonzini Subject: [PATCH v11 06/14] accel/tcg: convert profiling of restore operations to TBStats Date: Fri, 21 Apr 2023 21:24:13 +0800 Message-Id: <20230421132421.1617479-7-fei2.wu@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230421132421.1617479-1-fei2.wu@intel.com> References: <20230421132421.1617479-1-fei2.wu@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.55.52.43; envelope-from=fei2.wu@intel.com; helo=mga05.intel.com X-Spam_score_int: -43 X-Spam_score: -4.4 X-Spam_bar: ---- X-Spam_report: (-4.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Alex Bennée This starts the conversion of CONFIG_PROFILER data collection to under the TBStats system. We introduce a new flag TB_JIT_TIME and start tracking how much time is spent restoring execution state from a given TB. Signed-off-by: Alex Bennée --- accel/tcg/translate-all.c | 23 ++++++++++++++--------- include/exec/tb-stats.h | 6 ++++++ include/qemu/timer.h | 3 --- 3 files changed, 20 insertions(+), 12 deletions(-) diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 8a51c291d8..bf10987450 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -200,10 +200,12 @@ void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, uintptr_t host_pc) { uint64_t data[TARGET_INSN_START_WORDS]; -#ifdef CONFIG_PROFILER - TCGProfile *prof = &tcg_ctx->prof; - int64_t ti = profile_getclock(); -#endif + uint64_t ti = 0; + + if (tb_stats_enabled(tb, TB_JIT_TIME)) { + ti = profile_getclock(); + } + int insns_left = cpu_unwind_data_from_tb(tb, host_pc, data); if (insns_left < 0) { @@ -221,11 +223,14 @@ void cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb, cpu->cc->tcg_ops->restore_state_to_opc(cpu, tb, data); -#ifdef CONFIG_PROFILER - qatomic_set(&prof->restore_time, - prof->restore_time + profile_getclock() - ti); - qatomic_set(&prof->restore_count, prof->restore_count + 1); -#endif + if (tb_stats_enabled(tb, TB_JIT_TIME)) { + TBStatistics *ts = tb->tb_stats; + uint64_t elapsed = profile_getclock() - ti; + qemu_mutex_lock(&ts->jit_stats_lock); + ts->tb_restore_time += elapsed; + ts->tb_restore_count++; + qemu_mutex_unlock(&ts->jit_stats_lock); + } } bool cpu_restore_state(CPUState *cpu, uintptr_t host_pc) diff --git a/include/exec/tb-stats.h b/include/exec/tb-stats.h index 0ccf025ae4..80314c50f9 100644 --- a/include/exec/tb-stats.h +++ b/include/exec/tb-stats.h @@ -91,6 +91,11 @@ struct TBStatistics { * this TBStats structure. Has to be reset on a tb_flush. */ GPtrArray *tbs; + + /* Recover state from TB */ + uint64_t tb_restore_time; + uint64_t tb_restore_count; + }; bool tb_stats_cmp(const void *ap, const void *bp); @@ -102,6 +107,7 @@ void dump_jit_profile_info(TCGProfile *s, GString *buf); #define TB_NOTHING (1 << 0) #define TB_EXEC_STATS (1 << 1) #define TB_JIT_STATS (1 << 2) +#define TB_JIT_TIME (1 << 3) void enable_collect_tb_stats(void); void disable_collect_tb_stats(void); diff --git a/include/qemu/timer.h b/include/qemu/timer.h index d86fc73a17..ad0da18a5f 100644 --- a/include/qemu/timer.h +++ b/include/qemu/timer.h @@ -989,7 +989,6 @@ static inline int64_t cpu_get_host_ticks(void) } #endif -#ifdef CONFIG_PROFILER static inline int64_t profile_getclock(void) { return get_clock(); @@ -997,5 +996,3 @@ static inline int64_t profile_getclock(void) extern uint64_t dev_time; #endif - -#endif