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d="scan'208";a="432268350" 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" 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 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1682083545916100007 From: Alex Benn=C3=A9e 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 Benn=C3=A9e --- 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, Transla= tionBlock *tb, uintptr_t host_pc) { uint64_t data[TARGET_INSN_START_WORDS]; -#ifdef CONFIG_PROFILER - TCGProfile *prof =3D &tcg_ctx->prof; - int64_t ti =3D profile_getclock(); -#endif + uint64_t ti =3D 0; + + if (tb_stats_enabled(tb, TB_JIT_TIME)) { + ti =3D profile_getclock(); + } + int insns_left =3D cpu_unwind_data_from_tb(tb, host_pc, data); =20 if (insns_left < 0) { @@ -221,11 +223,14 @@ void cpu_restore_state_from_tb(CPUState *cpu, Transla= tionBlock *tb, =20 cpu->cc->tcg_ops->restore_state_to_opc(cpu, tb, data); =20 -#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 =3D tb->tb_stats; + uint64_t elapsed =3D profile_getclock() - ti; + qemu_mutex_lock(&ts->jit_stats_lock); + ts->tb_restore_time +=3D elapsed; + ts->tb_restore_count++; + qemu_mutex_unlock(&ts->jit_stats_lock); + } } =20 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; + }; =20 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) =20 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 =20 -#ifdef CONFIG_PROFILER static inline int64_t profile_getclock(void) { return get_clock(); @@ -997,5 +996,3 @@ static inline int64_t profile_getclock(void) =20 extern uint64_t dev_time; #endif - -#endif --=20 2.25.1