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#1 2012-10-10 10:40:58

utops
Member
Registered: 2012-09-24
Posts: 44

Xfce4 slow down at loading after compiling it for "-march=native"

Hi.
Hi i take my time to compile some core packages and graphical libraries/Xfce4 modules such as Glibc/Binutils/Coreutils/GTK2/GTK3/Mesa/Glib/Xfce4-libraries and applets/xorg-server modules using

CFLAGS="-march=native  -O2  -pipe " on k8 family processors 

That means

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#define __ATOMIC_ACQUIRE 2
#define __FLT_MIN__ 1.17549435082228750797e-38F
#define __UINT_LEAST8_TYPE__ unsigned char
#define __INTMAX_C(c) c ## LL
#define __CHAR_BIT__ 8
#define __UINT8_MAX__ 255
#define __WINT_MAX__ 4294967295U
#define __ORDER_LITTLE_ENDIAN__ 1234
#define __SIZE_MAX__ 4294967295U
#define __WCHAR_MAX__ 2147483647L
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_1 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_2 1
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 1
#define __DBL_DENORM_MIN__ ((double)4.94065645841246544177e-324L)
#define __GCC_HAVE_SYNC_COMPARE_AND_SWAP_8 1
#define __GCC_ATOMIC_CHAR_LOCK_FREE 2
#define __FLT_EVAL_METHOD__ 2
#define __unix__ 1
#define __GCC_ATOMIC_CHAR32_T_LOCK_FREE 2
#define __UINT_FAST64_MAX__ 18446744073709551615ULL
#define __SIG_ATOMIC_TYPE__ int
#define __DBL_MIN_10_EXP__ (-307)
#define __FINITE_MATH_ONLY__ 0
#define __GNUC_PATCHLEVEL__ 2
#define __UINT_FAST8_MAX__ 255
#define __DEC64_MAX_EXP__ 385
#define __INT8_C(c) c
#define __UINT_LEAST64_MAX__ 18446744073709551615ULL
#define __SHRT_MAX__ 32767
#define __LDBL_MAX__ 1.18973149535723176502e+4932L
#define __UINT_LEAST8_MAX__ 255
#define __GCC_ATOMIC_BOOL_LOCK_FREE 2
#define __UINTMAX_TYPE__ long long unsigned int
#define __linux 1
#define __DEC32_EPSILON__ 1E-6DF
#define __unix 1
#define __UINT32_MAX__ 4294967295U
#define __LDBL_MAX_EXP__ 16384
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#define __linux__ 1
#define __SCHAR_MAX__ 127
#define __WCHAR_MIN__ (-__WCHAR_MAX__ - 1)
#define __INT64_C(c) c ## LL
#define __DBL_DIG__ 15
#define __GCC_ATOMIC_POINTER_LOCK_FREE 2
#define __SIZEOF_INT__ 4
#define __SIZEOF_POINTER__ 4
#define __USER_LABEL_PREFIX__ 
#define __STDC_HOSTED__ 1
#define __LDBL_HAS_INFINITY__ 1
#define __FLT_EPSILON__ 1.19209289550781250000e-7F
#define __LDBL_MIN__ 3.36210314311209350626e-4932L
#define __DEC32_MAX__ 9.999999E96DF
#define __INT32_MAX__ 2147483647
#define __SIZEOF_LONG__ 4
#define __UINT16_C(c) c
#define __DECIMAL_DIG__ 21
#define __gnu_linux__ 1
#define __LDBL_HAS_QUIET_NAN__ 1
#define __GNUC__ 4
#define __MMX__ 1
#define __FLT_HAS_DENORM__ 1
#define __SIZEOF_LONG_DOUBLE__ 12
#define __BIGGEST_ALIGNMENT__ 16
#define __DBL_MAX__ ((double)1.79769313486231570815e+308L)
#define __INT_FAST32_MAX__ 2147483647
#define __DBL_HAS_INFINITY__ 1
#define __DEC32_MIN_EXP__ (-94)
#define __INT_FAST16_TYPE__ int
#define __LDBL_HAS_DENORM__ 1
#define __DEC128_MAX__ 9.999999999999999999999999999999999E6144DL
#define __INT_LEAST32_MAX__ 2147483647
#define __DEC32_MIN__ 1E-95DF
#define __DBL_MAX_EXP__ 1024
#define __DEC128_EPSILON__ 1E-33DL
#define __PTRDIFF_MAX__ 2147483647
#define __LONG_LONG_MAX__ 9223372036854775807LL
#define __SIZEOF_SIZE_T__ 4
#define __SIZEOF_WINT_T__ 4
#define __GCC_HAVE_DWARF2_CFI_ASM 1
#define __GXX_ABI_VERSION 1002
#define __FLT_MIN_EXP__ (-125)
#define __INT_FAST64_TYPE__ long long int
#define __DBL_MIN__ ((double)2.22507385850720138309e-308L)
#define __DECIMAL_BID_FORMAT__ 1
#define __DEC128_MIN__ 1E-6143DL
#define __REGISTER_PREFIX__ 
#define __UINT16_MAX__ 65535
#define __DBL_HAS_DENORM__ 1
#define __UINT8_TYPE__ unsigned char
#define __NO_INLINE__ 1
#define __3dNOW__ 1
#define __i386 1
#define __FLT_MANT_DIG__ 24
#define __VERSION__ "4.7.2"
#define __UINT64_C(c) c ## ULL
#define __GCC_ATOMIC_INT_LOCK_FREE 2
#define __FLOAT_WORD_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __INT32_C(c) c
#define __DEC64_EPSILON__ 1E-15DD
#define __ORDER_PDP_ENDIAN__ 3412
#define __DEC128_MIN_EXP__ (-6142)
#define __3dNOW_A__ 1
#define __INT_FAST32_TYPE__ int
#define __UINT_LEAST16_TYPE__ short unsigned int
#define unix 1
#define __INT16_MAX__ 32767
#define __i386__ 1
#define __SIZE_TYPE__ unsigned int
#define __UINT64_MAX__ 18446744073709551615ULL
#define __INT8_TYPE__ signed char
#define __ELF__ 1
#define __FLT_RADIX__ 2
#define __INT_LEAST16_TYPE__ short int
#define __LDBL_EPSILON__ 1.08420217248550443401e-19L
#define __UINTMAX_C(c) c ## ULL
#define __k8 1
#define __SIG_ATOMIC_MAX__ 2147483647
#define __GCC_ATOMIC_WCHAR_T_LOCK_FREE 2
#define __SIZEOF_PTRDIFF_T__ 4
#define __DEC32_SUBNORMAL_MIN__ 0.000001E-95DF
#define __INT_FAST16_MAX__ 2147483647
#define __UINT_FAST32_MAX__ 4294967295U
#define __UINT_LEAST64_TYPE__ long long unsigned int
#define __FLT_HAS_QUIET_NAN__ 1
#define __FLT_MAX_10_EXP__ 38
#define __LONG_MAX__ 2147483647L
#define __DEC128_SUBNORMAL_MIN__ 0.000000000000000000000000000000001E-6143DL
#define __FLT_HAS_INFINITY__ 1
#define __UINT_FAST16_TYPE__ unsigned int
#define __DEC64_MAX__ 9.999999999999999E384DD
#define __CHAR16_TYPE__ short unsigned int
#define __PRAGMA_REDEFINE_EXTNAME 1
#define __INT_LEAST16_MAX__ 32767
#define __DEC64_MANT_DIG__ 16
#define __INT64_MAX__ 9223372036854775807LL
#define __UINT_LEAST32_MAX__ 4294967295U
#define __GCC_ATOMIC_LONG_LOCK_FREE 2
#define __INT_LEAST64_TYPE__ long long int
#define __INT16_TYPE__ short int
#define __INT_LEAST8_TYPE__ signed char
#define __DEC32_MAX_EXP__ 97
#define __INT_FAST8_MAX__ 127
#define __INTPTR_MAX__ 2147483647
#define linux 1
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#define __LDBL_MANT_DIG__ 64
#define __DBL_HAS_QUIET_NAN__ 1
#define __SIG_ATOMIC_MIN__ (-__SIG_ATOMIC_MAX__ - 1)
#define __k8__ 1
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#define __WCHAR_TYPE__ long int
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#define __UINTPTR_MAX__ 4294967295U
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#define __GCC_ATOMIC_TEST_AND_SET_TRUEVAL 1
#define __FLT_DIG__ 6
#define __UINT_FAST64_TYPE__ long long unsigned int
#define __INT_MAX__ 2147483647
#define __INT64_TYPE__ long long int
#define __FLT_MAX_EXP__ 128
#define __DBL_MANT_DIG__ 53
#define __INT_LEAST64_MAX__ 9223372036854775807LL
#define __GCC_ATOMIC_CHAR16_T_LOCK_FREE 2
#define __DEC64_MIN__ 1E-383DD
#define __WINT_TYPE__ unsigned int
#define __UINT_LEAST32_TYPE__ unsigned int
#define __SIZEOF_SHORT__ 2
#define __SSE__ 1
#define __LDBL_MIN_EXP__ (-16381)
#define __INT_LEAST8_MAX__ 127
#define __LDBL_MAX_10_EXP__ 4932
#define __ATOMIC_RELAXED 0
#define __DBL_EPSILON__ ((double)2.22044604925031308085e-16L)
#define __UINT8_C(c) c
#define __INT_LEAST32_TYPE__ int
#define __SIZEOF_WCHAR_T__ 4
#define __UINT64_TYPE__ long long unsigned int
#define __INT_FAST8_TYPE__ signed char
#define __DBL_DECIMAL_DIG__ 17
#define __DEC_EVAL_METHOD__ 2
#define __tune_k8__ 1
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#define __UINT32_C(c) c ## U
#define __INTMAX_MAX__ 9223372036854775807LL
#define __BYTE_ORDER__ __ORDER_LITTLE_ENDIAN__
#define __FLT_DENORM_MIN__ 1.40129846432481707092e-45F
#define __INT8_MAX__ 127
#define __UINT_FAST32_TYPE__ unsigned int
#define __CHAR32_TYPE__ unsigned int
#define __FLT_MAX__ 3.40282346638528859812e+38F
#define __INT32_TYPE__ int
#define __SIZEOF_DOUBLE__ 8
#define __FLT_MIN_10_EXP__ (-37)
#define __INTMAX_TYPE__ long long int
#define i386 1
#define __DEC128_MAX_EXP__ 6145
#define __ATOMIC_CONSUME 1
#define __GNUC_MINOR__ 7
#define __UINTMAX_MAX__ 18446744073709551615ULL
#define __DEC32_MANT_DIG__ 7
#define __DBL_MAX_10_EXP__ 308
#define __LDBL_DENORM_MIN__ 3.64519953188247460253e-4951L
#define __INT16_C(c) c
#define __STDC__ 1
#define __PTRDIFF_TYPE__ int
#define __ATOMIC_SEQ_CST 5
#define __UINT32_TYPE__ unsigned int
#define __UINTPTR_TYPE__ unsigned int
#define __DEC64_SUBNORMAL_MIN__ 0.000000000000001E-383DD
#define __DEC128_MANT_DIG__ 34
#define __LDBL_MIN_10_EXP__ (-4931)
#define __SIZEOF_LONG_LONG__ 8
#define __GCC_ATOMIC_LLONG_LOCK_FREE 2
#define __LDBL_DIG__ 18
#define __FLT_DECIMAL_DIG__ 9
#define __UINT_FAST16_MAX__ 4294967295U
#define __GNUC_GNU_INLINE__ 1
#define __GCC_ATOMIC_SHORT_LOCK_FREE 2
#define __SSE3__ 1
#define __UINT_FAST8_TYPE__ unsigned char
#define __ATOMIC_ACQ_REL 4
#define __ATOMIC_RELEASE 3

After compilation system slow downs i hear my hdd crunching even on simple things like simple cli logon. Xfce4.10 load slowly nothing like the first time on standard arch i686 packages - i even create new user to start up xfce4,but default xfce template loads slow in comparision to the first time on

march=i686 mtune=generic.

So gcc doesen't like k8 family ?
Also no matter what kernel i use ck-kx or arch repo, performance is really not satysfying.

Any tips ideas and trick will be much appreciated.

system specs:

AMD Athlon(tm) 64 X2 Dual Core Processor 3600+
1gb x2 DDR2 Kingston Dual Channel
MB Chip Nvidia Nforce 550 MPC

pure systemd. - no failed services.

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#2 2012-10-10 13:47:28

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,041

Re: Xfce4 slow down at loading after compiling it for "-march=native"

It would seem to me that march=native would depend on the compilers ability to correctly identify the architecture.


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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#3 2012-10-10 14:09:24

utops
Member
Registered: 2012-09-24
Posts: 44

Re: Xfce4 slow down at loading after compiling it for "-march=native"

Yes it identified cpu correct, as i pasted:

 echo | gcc -dM -E - -march=native
#define __k8__ 1
#define __SSE__ 1
#define __SSE2__ 1
#define __SSE3__ 1
#define __3dNOW_A__ 1
#define __3dNOW__ 1
define __MMX__ 1

This is anoying as hell - Why even FSF bothers to put optimalizations if they do not work,or make code bigger and lazy.

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#4 2012-10-10 16:44:22

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,041

Re: Xfce4 slow down at loading after compiling it for "-march=native"

What happens if you just use the repository packages for xfce4?


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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#5 2012-10-10 17:31:37

utops
Member
Registered: 2012-09-24
Posts: 44

Re: Xfce4 slow down at loading after compiling it for "-march=native"

Like i said, it's faster then packages optimized to k8. This is major BS. Xfce made with repo packages are smooth,mine k8 optimized feels like vista on crapy pc, and i don't
use weird compiler  flags and other stuff like that.
Damn i can't wait for Haiku OS more and more.

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#6 2012-10-10 18:17:28

ewaller
Administrator
From: Pasadena, CA
Registered: 2009-07-13
Posts: 13,829

Re: Xfce4 slow down at loading after compiling it for "-march=native"

How did you compile it?  Did you hand fly it, or did you modify and use the PKGBUILD ?


Nothing is too wonderful to be true, if it be consistent with the laws of nature -- Michael Faraday
You assume people are rational and influenced by evidence.  You must not work with the public much. -- Trilby
----
How to Ask Questions the Smart Way

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#7 2012-10-10 18:30:15

utops
Member
Registered: 2012-09-24
Posts: 44

Re: Xfce4 slow down at loading after compiling it for "-march=native"

ewaller wrote:

How did you compile it?  Did you hand fly it, or did you modify and use the PKGBUILD ?

Nothing fancy,just makepkg.conf edit:

CFLAGS="-march=native  -O2  -pipe"
CXXFLAGS="-march=native -O2  -pipe"

Should be enough not to brake things and gain that 0000000000000,1 % performance,but instead it turns my enviroment in to vista that  looks like xfce4.
Edit
...and im using official PKGBUILDS from abs.

Last edited by utops (2012-10-10 18:32:38)

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#8 2012-10-10 18:56:25

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,041

Re: Xfce4 slow down at loading after compiling it for "-march=native"

Kernel-ck-k8, yeah might work with march=native, but then again, kernel-ck might call it something different to diffentiate it from a regular compile.  The kernel is the only thing that is k8 optimized.  The rest of the packages are standard arch packages.  I think I may have killed my motherboard with linux-ck, but I have no for sure may of confirming.  I'm not sure how software can melt your chipset.  The kernel variables for io_scheduler in the ck kernel are changed to get the performance, but I didn't really notice any big performance.  My chipset was so melted down it took 8 hours to complete one cycle of memtest (memory wasn't the problem).


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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#9 2012-10-10 19:16:54

utops
Member
Registered: 2012-09-24
Posts: 44

Re: Xfce4 slow down at loading after compiling it for "-march=native"

No real difference between ck-kx kernel or standard repo kernel if it comes to my problem, both giving me slugish enviroment with difference that kx-ck is more responsive in bigger cpu loads.
I might stick to official precompiled packages ,but this is matter of choice and options taken away from me. I theory march=k8 or native should give me better performance then standart "march=i686 mtune=generic" but instead , like i said i've got something that resembles hackintosh running on home badly build pc or vista on single core low ram machine- slow and lazy.

Last edited by utops (2012-10-10 19:17:34)

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#10 2012-10-10 22:19:20

nomorewindows
Member
Registered: 2010-04-03
Posts: 3,041

Re: Xfce4 slow down at loading after compiling it for "-march=native"

Optimization seems to be all the way down the line to the point that if it isn't, there isn't any measurable optimization.


I may have to CONSOLE you about your usage of ridiculously easy graphical interfaces...
Look ma, no mouse.

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