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AJvYcCXJcOjlVuAdd5S2225pgZso57Ail+ImJOkpe+Uojd1p34raEClsRflr+fXAjsCSHNYs/DIzRpqY7TJnDbIRHBjrS9dFDItUyp6nr6Ne X-Gm-Message-State: AOJu0YwCZk9SGNqlZ277SxsE60WAMk2fAaaqfv+X0KUeE7AHmrmjmqa7 1HTm46ZwzeuPs+vxyhXSy4AKVZpeWSc7c6CBZwTKKw/uvR14CelqSnQ3NdwIttBjtacTo89NgOh boScU/A== X-Received: from irogers.svl.corp.google.com ([2620:15c:2a3:200:4b5c:352:4272:e34e]) (user=irogers job=sendgmr) by 2002:a05:6902:729:b0:dc2:5273:53f9 with SMTP id l9-20020a056902072900b00dc2527353f9mr224067ybt.1.1708127719606; Fri, 16 Feb 2024 15:55:19 -0800 (PST) Date: Fri, 16 Feb 2024 15:51:57 -0800 In-Reply-To: <20240216235203.229256-1-irogers@google.com> Message-Id: <20240216235203.229256-4-irogers@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20240216235203.229256-1-irogers@google.com> X-Mailer: git-send-email 2.44.0.rc0.258.g7320e95886-goog Subject: [PATCH v5 3/8] perf tests: Avoid fork in perf_has_symbol test From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Mark Rutland , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Athira Jajeev , James Clark , Kan Liang , Yang Jihong , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, llvm@lists.linux.dev X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1791101980594000032 X-GMAIL-MSGID: 1791101980594000032 perf test -vv Symbols is used to indentify symbols within the perf binary. Add the -F flag so that the test command doesn't fork the test before running. This removes a little overhead. Acked-by: Adrian Hunter Signed-off-by: Ian Rogers --- tools/perf/tests/shell/lib/perf_has_symbol.sh | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/tests/shell/lib/perf_has_symbol.sh b/tools/perf/tests/shell/lib/perf_has_symbol.sh index 5d59c32ae3e7..561c93b75d77 100644 --- a/tools/perf/tests/shell/lib/perf_has_symbol.sh +++ b/tools/perf/tests/shell/lib/perf_has_symbol.sh @@ -3,7 +3,7 @@ perf_has_symbol() { - if perf test -vv "Symbols" 2>&1 | grep "[[:space:]]$1$"; then + if perf test -vv -F "Symbols" 2>&1 | grep "[[:space:]]$1$"; then echo "perf does have symbol '$1'" return 0 fi