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NotQuiteSane
Guru
Joined: 30 Jan 2005
Posts: 488
Location: Klamath Falls, Jefferson, USA, North America, Midgarth
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 Posted: Tue Sep 02, 2008 4:04 am Post subject: |
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I'm having some trouble with the script.
I patched the kernel, and can sucessfully load all required modules.
however when i do
| Code: | | pixel# ./use_compcache.sh 774144 |
i see:
| Code: | pixel# swapon -s
Filename Type Size Used Priority
/dev/hda2 partition 2008116 0 -3
/dev/hda3 partition 2008116 0 -4
/dev/ramzswap0 partition 258704 0 100
pixel# |
I seem to be only activating the default amount. goal is 756mb. any suggestions?
NQS
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These opinions are mine, mine I say! Piss off and get your own.
As I see it -- An irregular blog, Improved with new location
To delete French language packs from system use 'sudo rm -fr /' |
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devsk
Advocate
Joined: 24 Oct 2003
Posts: 2995
Location: Bay Area, CA
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| Posted: Tue Sep 02, 2008 4:58 am Post subject: |
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| NotQuiteSane wrote: | I'm having some trouble with the script.
I patched the kernel, and can sucessfully load all required modules.
however when i do
| Code: | | pixel# ./use_compcache.sh 774144 |
i see:
| Code: | pixel# swapon -s
Filename Type Size Used Priority
/dev/hda2 partition 2008116 0 -3
/dev/hda3 partition 2008116 0 -4
/dev/ramzswap0 partition 258704 0 100
pixel# |
I seem to be only activating the default amount. goal is 756mb. any suggestions?
NQS |
By the time you run ./use_compcache.sh 774144, you have already 'modprobe'd the compcache module. Do: swapoff /dev/ramzswap0 && rmmod compcache && ./use_compcache.sh 774144 |
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NotQuiteSane
Guru
Joined: 30 Jan 2005
Posts: 488
Location: Klamath Falls, Jefferson, USA, North America, Midgarth
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| Posted: Tue Sep 02, 2008 4:41 pm Post subject: |
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| devsk wrote: | | By the time you run ./use_compcache.sh 774144, you have already 'modprobe'd the compcache module. Do: swapoff /dev/ramzswap0 && rmmod compcache && ./use_compcache.sh 774144 |
doing that gives:
| Code: | pixel# swapoff /dev/ramzswap0 && rmmod compcache && /home/nqs/Desktop/compcache-0.4/use_compcache.sh 774144
Loading modules ...
Module: tlsf already loaded.
Module: compcache not found in current directory
Setting up swap device ...
swapon: cannot stat /dev/ramzswap0: No such file or directory
Could not add compcache swap device.
pixel# |
i'm running from /home/nqs. once i can get it all going, i'll move the script to a more standard location.
system info:
| Code: | pixel# uname -a
Linux pixel 2.6.26-tuxonice1sep08-2 #5 Mon Sep 1 21:39:21 PDT 2008 i686 Intel(R) Pentium(R) M processor 1.86GHz GenuineIntel GNU/Linux
pixel# |
| Code: | pixel# emerge --info
Portage 2.2_rc8 (default-linux/x86/2007.0, gcc-4.3.1, glibc-2.6.1-r0, 2.6.26-tuxonice1sep08-2 i686)
=================================================================
System uname: Linux-2.6.26-tuxonice1sep08-2-i686-Intel-R-_Pentium-R-_M_processor_1.86GHz-with-glibc2.0
Timestamp of tree: Mon, 01 Sep 2008 15:15:02 +0000
app-shells/bash: 3.2_p33
dev-java/java-config: 1.3.7, 2.1.6
dev-lang/python: 2.5.2-r6
dev-python/pycrypto: 2.0.1-r6
sys-apps/baselayout: 2.0.0
sys-apps/openrc: 9999
sys-apps/sandbox: 1.2.18.1-r2
sys-devel/autoconf: 2.13, 2.61-r2
sys-devel/automake: 1.4_p6, 1.5, 1.7.9-r1, 1.8.5-r3, 1.9.6-r2, 1.10.1
sys-devel/binutils: 2.18-r3
sys-devel/gcc-config: 1.4.0-r4
sys-devel/libtool: 1.5.26
virtual/os-headers: 2.6.23-r3
ACCEPT_KEYWORDS="x86"
CBUILD="i686-pc-linux-gnu"
CFLAGS="-Os -march=pentium-m -fomit-frame-pointer -pipe"
CHOST="i686-pc-linux-gnu"
CONFIG_PROTECT="/etc /var/lib/hsqldb"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/env.d /etc/env.d/java/ /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/revdep-rebuild /etc/splash /etc/terminfo /etc/udev/rules.d"
CXXFLAGS="-Os -march=pentium-m -fomit-frame-pointer -pipe"
DISTDIR="/usr/portage/distfiles"
FEATURES="distlocks parallel-fetch preserve-libs sandbox sfperms strict unmerge-orphans userfetch"
GENTOO_MIRRORS="http://gentoo.osuosl.org/ ftp://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://ftp.ucsb.edu/pub/mirrors/linux/gentoo/ http://mirror.usu.edu/mirrors/gentoo/ ftp://ftp.wallawalla.edu/pub/mirrors/ftp.gentoo.org "
LANG="C"
LDFLAGS=""
LINGUAS="en"
MAKEOPTS="-j2"
PKGDIR="/usr/portage/packages"
PORTAGE_RSYNC_EXTRA_OPTS="--exclude-from=/etc/portage/package.exclude"
PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --compress --force --whole-file --delete --stats --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages"
PORTAGE_TMPDIR="/var/tmp"
PORTDIR="/usr/portage"
SYNC="rsync://rsync.namerica.gentoo.org/gentoo-portage"
USE="nls pam x86" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1 emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" ALSA_PCM_PLUGINS="adpcm alaw asym copy dmix dshare dsnoop empty extplug file hooks iec958 ioplug ladspa lfloat linear meter mmap_emul mulaw multi null plug rate route share shm softvol" APACHE2_MODULES="actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" ELIBC="glibc" INPUT_DEVICES="keyboard mouse synaptics" KERNEL="linux" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LINGUAS="en" USERLAND="GNU" VIDEO_CARDS="vesa vga radeon"
Unset: CPPFLAGS, CTARGET, EMERGE_DEFAULT_OPTS, FFLAGS, INSTALL_MASK, LC_ALL, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTDIR_OVERLAY
pixel# |
nqs
_________________
These opinions are mine, mine I say! Piss off and get your own.
As I see it -- An irregular blog, Improved with new location
To delete French language packs from system use 'sudo rm -fr /' |
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NotQuiteSane
Guru
Joined: 30 Jan 2005
Posts: 488
Location: Klamath Falls, Jefferson, USA, North America, Midgarth
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| Posted: Tue Sep 02, 2008 5:27 pm Post subject: |
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ok, i fixed it, sort of. problem is it only works with this kernel:
| Code: | | pixel# ln -s /lib/modules/2.6.26-tuxonice1sep08-2/kernel/drivers/block/compcache.ko compcache.ko |
i now see 753 mb ram. close enough to 756 to not matter.
oh, and you can turn off the swap, and format a ramdisk. once i get another GB ram i'll be doing that in conjunction with this trick
NQS
_________________
These opinions are mine, mine I say! Piss off and get your own.
As I see it -- An irregular blog, Improved with new location
To delete French language packs from system use 'sudo rm -fr /' |
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ConnClark
n00b
Joined: 15 Aug 2007
Posts: 57
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| Posted: Fri Sep 12, 2008 4:13 pm Post subject: |
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When I was playing around with CFD code I tried using video ram as a fast swap file before. I wonder what the possibilities are of using this in conjunction with that trick.
I had a machine with 2 gigs of ram and I was using 124 megs of video ram as a fast swap file. On simulation where I was using 6 gigs of swap the improvement was not measurable. On a simulation that required 4 gigs of swap I could measure a speed up of about 5 to 10%.
I have to wonder if this would increase the effective ratio of the video ram to disk swap space to yield a measurable improvement?
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In formal computer science advances are made by standing on the shoulders of giants. Linux has shown that, if there are enough of you, you can advance just as far by stepping on each others toes. |
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