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downer
Tux's lil' helper
Joined: 20 Sep 2007
Posts: 120
Location: sweden
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 Posted: Wed Oct 24, 2007 10:15 am Post subject: laptop w/1gb ram and shared vram-how much to assign [SOLVED] |
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Hi,
I am fiddeling with the BIOS settings on my laptop (HP dv6500). It has 1gb RAM which it shares with the nvidia integrated graphics. What would be recommended setting for ammount of vram to assign?
The options are 32, 64, 128 and 256mb. When I first got it I set it up to maximum, but then "free -m" showed that all my ram was in use and it had started using swap also, now I run it on 32 and see no real difference in performance, tho I still have free ram and no used swap. Basically the only thing that puts strain on the GPU is Compiz-Fusion, especially the flame effects lags a bit (disregarding of mem setting) if a full screen app gets flamed. (Yes I use random effects  )
What I guess I am after is if there is any recomendation on which setting to use, or if it is a trial and error thing..?
Will I even notice if a few 100 mb's gets swapped out performance vice?
TIA
//D
_________________
HP dv6500 (dv6501eo) Laptop and Dell Latitude E6420 work puter;
both running Gentoo x86_64 quite successfully.
Last edited by downer on Fri Nov 02, 2007 11:13 pm; edited 1 time in total |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 12:25 pm Post subject: |
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I would assign 128MB RAM to the graphics card.
shows the ammount of RAM really used by the programs. |
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downer
Tux's lil' helper
Joined: 20 Sep 2007
Posts: 120
Location: sweden
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| Posted: Wed Oct 24, 2007 12:52 pm Post subject: |
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| Quote: | | I would assign 128MB RAM to the graphics card. |
Yeah, I think that was the default so it is probably a good idea.
| Quote: |
shows the ammount of RAM really used by the programs. |
Nothing seems to use more than 0.5% mem or so, so I guess its OK;
| Code: |
top - 14:48:58 up 6:55, 2 users, load average: 0.00, 0.00, 0.00
Tasks: 77 total, 1 running, 76 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.2%us, 0.0%sy, 0.0%ni, 99.8%id, 0.0%wa, 0.0%hi, 0.0%si, 0.0%st
Mem: 963120k total, 877776k used, 85344k free, 247352k buffers
Swap: 1004052k total, 20048k used, 984004k free, 172844k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ SWAP COMMAND
5927 gdm 16 0 115m 4572 3508 S 0 0.5 0:01.22 110m gdmgreeter
19604 root 18 0 5288 2064 336 S 0 0.2 0:00.00 3224 hddtemp
4385 haldaemo 16 0 22408 1752 1136 S 0 0.2 0:00.47 20m hald
5556 root 15 0 51440 1696 1488 S 0 0.2 0:02.69 48m Xorg
10330 downer 15 0 16692 1668 1348 S 0 0.2 0:00.26 14m bash
19799 downer 15 0 16768 1284 960 R 0 0.1 0:00.41 15m top
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Thanks for the input! 
//D |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 1:29 pm Post subject: |
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Please post
and
/etc/portage/package.use, too. |
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downer
Tux's lil' helper
Joined: 20 Sep 2007
Posts: 120
Location: sweden
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| Posted: Wed Oct 24, 2007 1:50 pm Post subject: |
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| Code: | sudo emerge --info
Portage 2.1.3.9 (default-linux/amd64/2007.0/desktop, gcc-4.1.2, glibc-2.6.1-r0, 2.6.22-gentoo-r5 x86_64)
=================================================================
System uname: 2.6.22-gentoo-r5 x86_64 AMD Athlon(tm) 64 X2 Dual-Core Processor TK-53
Timestamp of tree: Wed, 24 Oct 2007 05:20:01 +0000
app-shells/bash: 3.2_p17
dev-java/java-config: 1.3.7, 2.0.33-r1
dev-lang/python: 2.4.4-r5
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 1.12.9-r2
sys-apps/sandbox: 1.2.17
sys-devel/autoconf: 2.13, 2.61-r1
sys-devel/automake: 1.5, 1.6.3, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10
sys-devel/binutils: 2.18-r1
sys-devel/gcc-config: 1.3.16
sys-devel/libtool: 1.5.24
virtual/os-headers: 2.6.22-r2
ACCEPT_KEYWORDS="amd64"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-march=k8 -msse3 -O2 -pipe"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/kde/3.5/env /usr/kde/3.5/share/config /usr/kde/3.5/shutdown /usr/share/X11/xkb
/usr/share/config"
CONFIG_PROTECT_MASK="/etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/revdep-rebuild /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-march=k8 -msse3 -O2 -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks metadata-transfer sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://trumpetti.atm.tut.fi/gentoo/ ftp://trumpetti.atm.tut.fi/gentoo/ ftp://ftp.du.se/pub/os/gentoo http://ftp.du.se/pub/os/gentoo http://ds.thn.htu.se/linux/gentoo "
MAKEOPTS="-j3"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --delete-after --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --filter=H_**/files/digest-*"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
PORTDIR_OVERLAY="/usr/portage/local/layman/xeffects"
SYNC="rsync://rsync.europe.gentoo.org/gentoo-portage"
USE="X aac acl acpi alsa amd64 berkdb bitmap-fonts cairo cdr cli cracklib crypt cups dbus dri dvd dvdr dvdread eds emboss encode esd evo fam firefox flac fortran gdbm gif glitz gnome gpm gstreamer gtk hal iconv ipv6 isdnlog java jpeg kerberos ldap logrotate mad midi mikmod mmx mp3 mpeg mudflap ncurses nls nptl nptlonly ogg opengl openmp oss pam pcre pdf perl png pppd python qt3support quicktime readline reflection sdl session sound spell spl sse sse2 ssl svg tcpd tiff truetype truetype-fonts type1-fonts unicode vorbis wma xml xorg xv zlib" ALSA_CARDS="hda-intel" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mulaw multi null plug rate route share shm softvol" ELIBC="glibc" INPUT_DEVICES="keyboard mouse synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" USERLAND="GNU" VIDEO_CARDS="nvidia nv vesa"
Unset: CTARGET, EMERGE_DEFAULT_OPTS, INSTALL_MASK, LANG, LC_ALL, LDFLAGS, LINGUAS, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS |
| Quote: | and
/etc/portage/package.use, too. |
| Code: |
cat /etc/portage/package.use
sys-power/cpufreqd lm_sensors nvidia
gnome-extra/sensors-applet nvidia lm_sensors hddtemp libnotify
media-video/vlc dvd ffmpeg mpeg mad wxwindows aac dts a52 ogg flac theora oggvorbis matroska freetype bidi xv svga gnutls stream vlm httpd cdda vcd cdio live
x11-libs/libX11 xcb
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What are you looking for?
//D |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 1:59 pm Post subject: |
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| Code: | | CFLAGS="-march=k8 -msse3 -O2 -pipe" |
should be replaced with
| Code: | | CFLAGS="-mtune=k8 -march=k8 -msse3 -O2 -pipe" |
and
you should add to /etc/portage/package.use the following lines:
| Code: | sys-devel/gcc d mudflap objc objc++ objc-gc: compiles GCC correctly
sys-libs/glibc userlocales |
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RaceTM
Apprentice
Joined: 16 Feb 2004
Posts: 281
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| Posted: Wed Oct 24, 2007 2:46 pm Post subject: |
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| Keruskerfuerst wrote: | | Code: | | CFLAGS="-march=k8 -msse3 -O2 -pipe" |
should be replaced with
| Code: | | CFLAGS="-mtune=k8 -march=k8 -msse3 -O2 -pipe" |
and
you should add to /etc/portage/package.use the following lines:
| Code: | sys-devel/gcc d mudflap objc objc++ objc-gc: compiles GCC correctly
sys-libs/glibc userlocales |
|
could you explain what those use flags do? |
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Keruskerfuerst
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Location: near Augsburg, Germany
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Monkeh
Veteran
Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Wed Oct 24, 2007 3:24 pm Post subject: |
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| Keruskerfuerst wrote: | | Code: | | CFLAGS="-march=k8 -msse3 -O2 -pipe" |
should be replaced with
| Code: | | CFLAGS="-mtune=k8 -march=k8 -msse3 -O2 -pipe" |
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For what reason? |
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RaceTM
Apprentice
Joined: 16 Feb 2004
Posts: 281
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| Posted: Wed Oct 24, 2007 3:26 pm Post subject: |
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| Keruskerfuerst wrote: | | http://www.gentoo.org/dyn/use-index.xml |
erm thanks,
I was thinking more along the lines that if you feel the need to ask someone to change their use flags for certain packages, perhaps you could explain your reasoning and why you made the suggestion so the thread started and anyone else who stumbles across this thread would understand |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 3:27 pm Post subject: |
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| -mtune enables ABI and scheduling for a specific processor. |
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Monkeh
Veteran
Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Wed Oct 24, 2007 3:31 pm Post subject: |
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| Keruskerfuerst wrote: | | -mtune enables ABI and scheduling for a specific processor. |
-march implies -mtune.. |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 3:43 pm Post subject: |
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| Quote: | | -march implies -mtune.. |
No.
GCC documentation is not correct in this case.
d: enables support for the D language
mudflap: enables support for pointer checking library. (garbage collector).
objc objc++ objc-gc: enables support for Object c, c++ und gc.
You can check this out by using . |
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Monkeh
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Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Wed Oct 24, 2007 6:22 pm Post subject: |
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| Keruskerfuerst wrote: | | Quote: | | -march implies -mtune.. |
No.
GCC documentation is not correct in this case. |
Your source please?
| Quote: | d: enables support for the D language
mudflap: enables support for pointer checking library. (garbage collector).
objc objc++ objc-gc: enables support for Object c, c++ und gc. |
mudflap is default. I doubt most people will need d, objc, objc++, or objc-gc. |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Wed Oct 24, 2007 8:00 pm Post subject: |
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| Quote: | No.
GCC documentation is not correct in this case.
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| Quote: | | Your source please? |
Sourcecode of GCC. |
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jexxie
Tux's lil' helper
Joined: 12 Oct 2007
Posts: 82
Location: Vancouver, BC
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| Posted: Wed Oct 24, 2007 11:23 pm Post subject: |
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You don't need to have so much vram, if you're just using a normal resolution.
If you're using a 1280x800 pixel display at 32bit color (like you probably are), you need:
1280*800*32 = 32768000 bytes, or 31.25MB of vram. If you want a doublebuffer, it would be double that number -- 64MB is the most you could need.
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My personal site and blog: Phil Dufault |
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downer
Tux's lil' helper
Joined: 20 Sep 2007
Posts: 120
Location: sweden
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| Posted: Thu Oct 25, 2007 7:19 am Post subject: |
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| jexxie wrote: | You don't need to have so much vram, if you're just using a normal resolution.
If you're using a 1280x800 pixel display at 32bit color (like you probably are), you need:
1280*800*32 = 32768000 bytes, or 31.25MB of vram. If you want a doublebuffer, it would be double that number -- 64MB is the most you could need. |
Yeah, I'm running 1280x800 on it, so I guess that is why I never saw any performance improvement when going up to 256 or decrease when going down to 32mb, right?
Is this also true when running games (if I ever decide to run anything other than e-uae )?
Thanks,
//D |
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Keruskerfuerst
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Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Thu Oct 25, 2007 11:26 am Post subject: |
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I have forgotten:
some good LDFLAGS are missing:
LDFLAGS="-Wl,-O4"
LDFLAGS="${LDFLAGS} -Wl,--as-needed"
LDFLAGS="${LDFLAGS} -Wl,--enable-new-dtags"
LDFLAGS="${LDFLAGS} -Wl,--hash-style=both"
LDFLAGS="${LDFLAGS} -Wl,--sort-common"
LDFLAGS="${LDFLAGS} -Wl,-z,now" |
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Monkeh
Veteran
Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Thu Oct 25, 2007 1:46 pm Post subject: |
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| Keruskerfuerst wrote: | I have forgotten:
some good LDFLAGS are missing:
LDFLAGS="-Wl,-O4"
LDFLAGS="${LDFLAGS} -Wl,--as-needed"
LDFLAGS="${LDFLAGS} -Wl,--enable-new-dtags"
LDFLAGS="${LDFLAGS} -Wl,--hash-style=both"
LDFLAGS="${LDFLAGS} -Wl,--sort-common"
LDFLAGS="${LDFLAGS} -Wl,-z,now" |
Please don't advise people to do things which will render them unsupported. |
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Merlin-TC
l33t
Joined: 16 May 2003
Posts: 603
Location: Germany
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| Posted: Fri Oct 26, 2007 3:38 pm Post subject: |
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| Keruskerfuerst wrote: | | Quote: | | -march implies -mtune.. |
No.
GCC documentation is not correct in this case.
d: enables support for the D language
mudflap: enables support for pointer checking library. (garbage collector).
objc objc++ objc-gc: enables support for Object c, c++ und gc.
You can check this out by using . |
So does that mean the gentoo wiki is wrong too?
Up until now I've read everywhere that march implies mtune. |
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Keruskerfuerst
Advocate
Joined: 01 Feb 2006
Posts: 2289
Location: near Augsburg, Germany
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| Posted: Fri Oct 26, 2007 8:00 pm Post subject: |
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| Everything you read is completly correct... |
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ksp7498
Apprentice
Joined: 08 Jun 2006
Posts: 225
Location: North Carolina - US
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| Posted: Fri Oct 26, 2007 8:22 pm Post subject: |
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| jexxie wrote: | You don't need to have so much vram, if you're just using a normal resolution.
If you're using a 1280x800 pixel display at 32bit color (like you probably are), you need:
1280*800*32 = 32768000 bytes, or 31.25MB of vram. If you want a doublebuffer, it would be double that number -- 64MB is the most you could need. |
no, the amount of ram required is far less than this. It is 32768000 bits, not bytes, so it's 1/8 of the space that you quoted. That would be a 4mb buffer, or 8mb double buffered.
_________________
“Isn’t it enough to see that a garden is beautiful without having to believe that there are fairies at the bottom of it too?”
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Monkeh
Veteran
Joined: 06 Aug 2005
Posts: 1656
Location: England
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| Posted: Fri Oct 26, 2007 8:44 pm Post subject: |
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| Keruskerfuerst wrote: | | Everything you read is completly correct... |
... So does -march imply -mtune or not? |
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jexxie
Tux's lil' helper
Joined: 12 Oct 2007
Posts: 82
Location: Vancouver, BC
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| Posted: Fri Oct 26, 2007 11:36 pm Post subject: |
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| ksp7498 wrote: | | no, the amount of ram required is far less than this. It is 32768000 bits, not bytes, so it's 1/8 of the space that you quoted. That would be a 4mb buffer, or 8mb double buffered. |
Thanks for the correction =)
_________________
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My personal site and blog: Phil Dufault |
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downer
Tux's lil' helper
Joined: 20 Sep 2007
Posts: 120
Location: sweden
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| Posted: Fri Nov 02, 2007 9:37 am Post subject: |
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| ksp7498 wrote: | | jexxie wrote: | You don't need to have so much vram, if you're just using a normal resolution.
If you're using a 1280x800 pixel display at 32bit color (like you probably are), you need:
1280*800*32 = 32768000 bytes, or 31.25MB of vram. If you want a doublebuffer, it would be double that number -- 64MB is the most you could need. |
no, the amount of ram required is far less than this. It is 32768000 bits, not bytes, so it's 1/8 of the space that you quoted. That would be a 4mb buffer, or 8mb double buffered. |
So basically anything over 32MB is a waste of RAM unless I use some texture heavy game or something like that?
//D
_________________
HP dv6500 (dv6501eo) Laptop and Dell Latitude E6420 work puter;
both running Gentoo x86_64 quite successfully. |
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Kernel & Hardware
