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From: Stephen Smalley <sds@tycho.nsa.gov>
To: John Brooks <john.brooks@jolla.com>, selinux@tycho.nsa.gov
Subject: Re: [PATCH 1/3] Build libsepol with -O2
Date: Mon, 12 Jan 2015 12:01:25 -0500	[thread overview]
Message-ID: <54B3FDE5.8000802@tycho.nsa.gov> (raw)
In-Reply-To: <1420668221-52637-2-git-send-email-john.brooks@jolla.com>

On 01/07/2015 05:03 PM, John Brooks wrote:
> libsepol contains performance sensitive code; in particular, compiler
> optimizations save a few minutes off of the optimized policydb hash
> tables.
> ---
>  libsepol/src/Makefile | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libsepol/src/Makefile b/libsepol/src/Makefile
> index 6450d67..059f198 100644
> --- a/libsepol/src/Makefile
> +++ b/libsepol/src/Makefile
> @@ -22,7 +22,7 @@ OBJS= $(patsubst %.c,%.o,$(wildcard *.c))
>  LOBJS= $(patsubst %.c,%.lo,$(wildcard *.c))
>  CFLAGS ?= -Werror -Wall -W -Wundef -Wshadow -Wmissing-format-attribute
>  
> -override CFLAGS += -I. -I../include -D_GNU_SOURCE
> +override CFLAGS += -I. -I../include -D_GNU_SOURCE -O2
>  
>  ifneq ($(DISABLE_CIL),y)
>  OBJS += $(sort $(patsubst %.c,%.o,$(wildcard $(CILDIR)/src/*.c) $(CIL_GENERATED)))
> 

Not sure we want this to always be set even if the caller specified
their own set of CFLAGS on the make command-line.

  reply	other threads:[~2015-01-12 17:01 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-07 22:03 [PATCH 0/3] Improve check_assertions performance through hash tweaks John Brooks
2015-01-07 22:03 ` [PATCH 1/3] Build libsepol with -O2 John Brooks
2015-01-12 17:01   ` Stephen Smalley [this message]
2015-01-07 22:03 ` [PATCH 2/3] Use a better hash function for libsepol's avtab John Brooks
2015-01-12 17:30   ` Stephen Smalley
2015-01-13  1:38     ` John Brooks
2015-01-13 13:53       ` Stephen Smalley
2015-01-07 22:03 ` [PATCH 3/3] Tweak avtab hash table parameters for better performance John Brooks
2015-01-12 17:47   ` Stephen Smalley
2015-01-12 17:55     ` Stephen Smalley
2015-01-12 20:07     ` Stephen Smalley
2015-01-13  1:25     ` John Brooks
2015-01-13 13:50       ` Stephen Smalley
2015-01-13 14:00         ` Stephen Smalley
2015-01-15  0:24 ` [PATCH v2 0/3] Improve check_assertions performance through hash tweaks John Brooks
2015-01-15  0:24   ` [PATCH v2 1/3] Build libsepol with -O2 John Brooks
2015-01-15  0:24   ` [PATCH v2 2/3] Use a better hash function for libsepol's avtab John Brooks
2015-01-15  0:24   ` [PATCH v2 3/3] Tweak avtab hash table parameters for better performance John Brooks
2015-01-15 18:56   ` [PATCH v2 0/3] Improve check_assertions performance through hash tweaks Stephen Smalley

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