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From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Ingo Molnar <mingo@kernel.org>
Cc: linux-kernel@vger.kernel.org,
	David Ahern <david.ahern@oracle.com>,
	Arnaldo Carvalho de Melo <acme@redhat.com>
Subject: [PATCH 02/20] perf tools: Compare JOBS to 0 after grep
Date: Tue,  3 Mar 2015 00:25:51 -0300	[thread overview]
Message-ID: <1425353169-21436-3-git-send-email-acme@kernel.org> (raw)
In-Reply-To: <1425353169-21436-1-git-send-email-acme@kernel.org>

From: David Ahern <david.ahern@oracle.com>

If JOBS is not by user perf tries to autodetect the number by grepping
the number of CPUs from /proc/cpuinfo. 'grep -c' will always return an
integer so after this command JOBS should be compared to 0, not "".

Signed-off-by: David Ahern <david.ahern@oracle.com>
Link: http://lkml.kernel.org/r/1424303971-91904-1-git-send-email-david.ahern@oracle.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index cb2e5868c8e8..d5020aeb5626 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -25,7 +25,7 @@ unexport MAKEFLAGS
 #
 ifeq ($(JOBS),)
   JOBS := $(shell grep -c ^processor /proc/cpuinfo 2>/dev/null)
-  ifeq ($(JOBS),)
+  ifeq ($(JOBS),0)
     JOBS := 1
   endif
 endif
-- 
1.9.3


  parent reply	other threads:[~2015-03-03  3:26 UTC|newest]

Thread overview: 30+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-03-03  3:25 [GIT PULL 00/20] perf/core improvements and fixes Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 01/20] perf tools: Only include tsc file for x86 Arnaldo Carvalho de Melo
2015-03-03  3:25 ` Arnaldo Carvalho de Melo [this message]
2015-03-03  3:25 ` [PATCH 03/20] perf stat: Report unsupported events properly Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 04/20] perf tools: Fix FORK after COMM when synthesizing records for pre-existing threads Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 05/20] perf tools: Fix build error on ARCH=i386/x86_64/sparc64 Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 06/20] perf record: Get rid of -l option from Documentation Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 07/20] perf record: Document --group option Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 08/20] perf tools: Add PERF-FEATURES to the .gitignore file Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 09/20] perf tools: Remove annoying extra message from the features build Arnaldo Carvalho de Melo
2015-03-03  3:25 ` [PATCH 10/20] perf tools: Improve Python feature detection messages Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 11/20] perf tools: Improve libperl detection message Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 12/20] perf tools: Improve libbfd " Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 13/20] perf tools: Improve feature test debuggability Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 14/20] perf tools: Improve 'libbabel' feature check failure message Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 15/20] perf probe: Warn if given uprobe event accesses memory on older kernel Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 16/20] perf probe: Remove bias offset to find probe point by address Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 17/20] perf tools: Initialize cpu set in pthread_attr_setaffinity_np feature test Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 18/20] Revert "perf: Remove the extra validity check on nr_pages" Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 19/20] perf tools: Reference count struct thread Arnaldo Carvalho de Melo
2015-03-03 13:42   ` Namhyung Kim
2015-03-03 13:57     ` Arnaldo Carvalho de Melo
2015-03-03  3:26 ` [PATCH 20/20] perf sched: No need to keep the session around Arnaldo Carvalho de Melo
2015-03-03  6:20 ` [GIT PULL 00/20] perf/core improvements and fixes Ingo Molnar
2015-03-10 10:03 ` Ingo Molnar
2015-03-10 14:03   ` Arnaldo Carvalho de Melo
2015-03-10 14:37     ` Ingo Molnar
2015-03-23 22:18   ` [RFC] propagating symtab load errors. was: " Arnaldo Carvalho de Melo
2015-03-24 13:16     ` Jiri Olsa
2015-03-24 15:05       ` Arnaldo Carvalho de Melo

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