Re: [blfs-support] Swap use and speed doubts
--- Em qui, 31/1/13, Simon Geard escreveu: De: Simon Geard Assunto: Re: [blfs-support] Swap use and speed doubts Para: blfs-support Data: Quinta-feira, 31 de Janeiro de 2013, 3:48 On Wed, 2013-01-30 at 03:31 -0800, Fernando de Oliveira wrote: 2. How a system with so much RAM is swapping? Because swap isn't just extra memory to use once RAM runs out. I don't know specifics for Linux, but the OS is free to pre-emptively move data from RAM to swap if it thinks it's appropriate to do so. For example, if that data hasn't been used in a while, it might page it out while the system isn't too busy, so that it doesn't need to do so should you suddenly want all that memory in future. Or it might decide that taking that memory for extra disk cache is a more efficient use, worth the cost of pulling that data out of disk if it's needed. I emphasize that this is theory, not necessarily what Linux is actually doing. The point is simply that the kernel's memory management is more complicated than just use swap if no RAM remaining. Simon. Thanks, Simon. I understand now that even without the necessity of extra memory, a system might swap. I was still trying to understand the other question, and can now answer. Question was essentially why Conky and a script I reproduced in the first mail give different swap values. Now, I include GKrellM in the question. The answer is trivial, and I found when trying to run the script (which is not mine, I got it from the internet, that is why I was asking). The command find /proc -iname swap results in many Permission denied. Therefore, the trivial answer is: script must be run by a privileged user. Below, the output of the script, just before I started writing this message. Again, thanks for clarifying question 2. Believe the question 1 is not only noise, could help someone, eventually, anyway, sorry for the noise, if not. []s, Fernando sudo ./.find-out-what-is-using-your-swap.sh | sort -nk3 Password: Overall swap used: 28028 KB PID=25500 swapped 20 KB (fcron) PID=2190 swapped 24 KB (gpm) PID=1 swapped 28 KB (init) PID=1701 swapped 32 KB (syslogd) PID=2038 swapped 36 KB (vnstatd) PID=2156 swapped 44 KB (fcron) PID=7694 swapped 56 KB (xinit) PID=1943 swapped 60 KB (dbus-daemon) PID=2197 swapped 76 KB (agetty) PID=2199 swapped 76 KB (agetty) PID=2196 swapped 80 KB (agetty) PID=2198 swapped 80 KB (agetty) PID=1877 swapped 84 KB (vmnet-natd) PID=2195 swapped 84 KB (agetty) PID=1872 swapped 108 KB (vmnet-netifup) PID=1879 swapped 112 KB (vmnet-netifup) PID=2129 swapped 112 KB (sshd) PID=2165 swapped 128 KB (vmware-usbarbit) PID=1864 swapped 132 KB (vmnet-bridge) PID=7638 swapped 172 KB (login) PID=1874 swapped 224 KB (vmnet-dhcpd) PID=1881 swapped 224 KB (vmnet-dhcpd) PID=1892 swapped 232 KB (vmware-authdlau) PID=2116 swapped 236 KB (ntpd) PID=1852 swapped 240 KB (vmware-vmblock-) PID=2131 swapped 340 KB (clamd) PID=964 swapped 560 KB (udevd) PID=1300 swapped 568 KB (udevd) PID=989 swapped 644 KB (udevd) PID=7639 swapped 904 KB (bash) PID=2063 swapped 1152 KB (colord) PID=2061 swapped 1344 KB (cupsd) PID=1720 swapped 1704 KB (klogd) PID=2067 swapped 1848 KB (colord-sane) PID=7695 swapped 16264 KB (X) -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: [blfs-support] Swap use and speed doubts
--- Em sáb, 2/2/13, Fernando de Oliveira escreveu:
De: Fernando de Oliveira
Assunto: Re: [blfs-support] Swap use and speed doubts
Para: BLFS Support List
Data: Sábado, 2 de Fevereiro de 2013, 7:25
--- Em qui, 31/1/13, Simon Geard
escreveu:
De: Simon Geard
Assunto: Re: [blfs-support] Swap use and speed doubts
Para: blfs-support
Data: Quinta-feira, 31 de Janeiro de 2013, 3:48
On Wed, 2013-01-30 at 03:31 -0800,
Fernando de Oliveira wrote:
...
2. How a system with so much RAM is swapping?
Because swap isn't just extra memory to use once RAM
runs
out.
...
I was still trying to understand the other question, and can
now
answer. Question was essentially why Conky and a script I
reproduced
in the first mail give different swap values. Now, I include
GKrellM
...
script must be run by a privileged user.
Again, I got the script from the internet (URL in the script). I have
included a test for the user. I do not know if what I have included is
a good test, if anyone thinks it is not, and has a better test, I would
much appreciate if you please tell me what to change. For this and if
anyone is interested, I include, after the signature, the modified
script.
[]s,
Fernando
$ cat .find-out-what-is-using-your-swap.sh
#!/bin/bash
# Get current swap usage for all running processes
# Erik Ljungstrom 27/05/2011
# http://northernmost.org/blog/find-out-what-is-using-your-swap/
# Modified by Mikko Rantalainen 2012-08-09
#
http://stackoverflow.com/questions/479953/how-to-find-out-which-processes-are-swapping-in-linux
# Pipe the output to sort -nk3 to get sorted output
# Modified by Fernando 2013/02/02
# User must be root
[ `id -u` != 0 ]
echo results may be wrong for unprivileged user
echo present user is *$(whoami)*
echo please, change to *root*
exit
SUM=0
OVERALL=0
for DIR in `find /proc/ -maxdepth 1 -type d -regex ^/proc/[0-9]+`
do
PID=`echo $DIR | cut -d / -f 3`
PROGNAME=`ps -p $PID -o comm --no-headers`
for SWAP in `grep Swap $DIR/smaps 2/dev/null | awk '{ print $2 }'`
do
let SUM=$SUM+$SWAP
done
if (( $SUM 0 )); then
echo PID=$PID swapped $SUM KB ($PROGNAME)
fi
let OVERALL=$OVERALL+$SUM
SUM=0
done
echo Overall swap used: $OVERALL KB
--
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Re: [blfs-support] Speech Dispatcher in BLFS?
On Fri, 1 Feb 2013 20:43:09 -0500 alex lupu alup...@gmail.com wrote: Seems you're not easily swayed by ugly financial reasons like Google crashing everything in its path (so you join it to avoid certain harm). In his infinite wisdom, God set a time and a place for everyone. Google became what it is mostly because it served its customers (IOW, society) well. That is, better that the competitors. But, should Google turn its back to the society that gave it the mountain of money it has, and should Google waste itself in shoveling unwanted crap down our throats, then there will be no Google. Point: Google glasses. Which iteration of the virtual reality glasses product are these? Unlike Microsoft and its pad, Apple made it big with the iPad because there was a need/demand for such a product at the time it was unveiled. And copious amounts of loans to broke deadbeats to finance said need, but lets ignore that for a moment - after all, Apple could have just slashed the price. Regarding Google and its glasses, I really, really, REALLY don't see a use for them. For iPad, even though I myself would never buy it, I do see a use - easy inteface device for control in industrial enviroments. Reading a book. Watching a movie. Playing a game. Looking cool is not on this list, mostly because Apple is mainstream. If really you want to convey the aura of being a part of the cool underground, use Linux. But what possible use can glasses have? Glasses that you control with YOUR VOICE!! I can't make this point hard enough. Imagine: you are standing in the middle of a packed tram (or bus) and you say out loud glasses do blah-blah. Everyone is instantly annoyed. But, your glasses have not understood it. So now you have to say the same command louder, possibly shout it (for example, the London underground can get quite loud sometimes) while everyone looks at you like they want to cram the glasses down your throat. In some parts of the world, it is now considered rude or very rude to talk on the phone in a public transportation vehicle. I can only immagine how long will it take before giving voice commands to glasses gets the same treatment. BTW, maybe I didn't convey it properly, my life was pretty bearable until chrome compilation started requiring (and silently no less, so to speak:) the presence of the Speech Dispatcher. Disabling chrome's speech component has become too onerous lately. Looks like it is high time for someone to write a browser from scratch. -- You don't need an AI for a robot uprising. Humans will do just fine. --Skynet -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
[blfs-support] VLC and Video4Linux (was: [blfs-book] r10987 ...)
--- Em sex, 1/2/13, randy escreveu: De: randy Assunto: [blfs-book] r10987 - in trunk/BOOK: . introduction/welcome multimedia/videoutils Para: blfs-book Data: Sexta-feira, 1 de Fevereiro de 2013, 19:28 Author: randy Date: Fri Feb 1 14:28:27 2013 New Revision: 10987 Log: Modified the build commands and dependencies in the VLC instructions Modified: trunk/BOOK/general.ent trunk/BOOK/introduction/welcome/changelog.xml trunk/BOOK/multimedia/videoutils/vlc.xml ... + ulink url=http://linuxtv.org/downloads/v4l-utils/;Video4Linux/ulink, ... Randy, if I am not mistaken, you have included this, right? I regularly upgrade some LFS machines, and since vlc 2, IIRC, had always to use --disable-v4l2 in LFS-6.5 (no problem with this in 6.7, 6.8, 7.0, 7.1). Now it built without the switch. Just installed v4l-utils-0.8.9, following aproximately ArchLinux (have not removed /usr/bin/ivtv-ctl, no idea why they do it, nor have moved /lib/udev/some-new-rule into /usr/lib/, as we do not have /usr/lib/udev). They have sed -i 's|CFLAGS :=|CFLAGS ?=|' Make.rules This was not present in the newer v4l-utils-0.9.3, so I just did not try harder, and used, as I said, 0.8.9. This version is flagged to be updated since 2012-12-05, in ArchLinux. If I understand correctly, this v4l/vlc issue has to do with linux API Headers, and it seems that v4l is included in newer kernels, so to explain why it could not be found in LFS-6.5, or somehow I have not included the correct config options for the kernel there. Please, if anybody has comments/corrections, it will be much appreciated. []s, Fernando -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: [blfs-support] VLC and Video4Linux (was: [blfs-book] r10987 ...)
Forgot to say that I used the new instructions including the patch, to install VLC. I have lua installed, so removed the disable-lua switch. I could not find in the page an explanation for the necessity of the patch, but do not remember if there are explanations for other patches. []s, Fernando -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
[blfs-support] SOLVED Re: System settings - network connections
On Thursday 31 January 2013 13:21:19 Armin K. wrote: It appears that wpa_supplicant isn't installed or configured properly. I reinstalled and reconfigured it. Well, we are now far away from our home and we both got suddently a lot of hot spots and we could connect without any problems, so it seems, that the problem is gone. We want to say thank you very much for the intensive help you gave us during some weeks. Edgar -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: [blfs-support] Speech Dispatcher in BLFS?
alex lupu wrote these words on 02/01/13 19:43 CST: Randy McMurchy wrote I couldn't care less about the Chrome browser Hi Randy: You'll live to regret these reckless words. Soon :) Sigh... regret...reckless (isn't that a bit, um, presumptuous)? I have personal reasons for wanting to help sight-impaired people. That's a very noble act. Speaking of that, my understanding is that's why Klaus put together A.D.R.I.A.N.E. in Knoppix (for his wife). Hope against hope. You are saying stuff that I cannot easily digest. What do you mean with Hope against hope? Really though, don't bother explaining as I do not intend to continue with this thread as I do not understand at all where you are going with it. Seems you're not easily swayed by ugly financial reasons like Google crashing everything in its path (so you join it to avoid certain harm). And now with this, you can be sure I will not continue to discuss your visions with whatever it is your searching. -- Randy rmlscsi: [bogomips 1003.23] [GNU ld version 2.16.1] [gcc (GCC) 4.0.3] [GNU C Library stable release version 2.3.6] [Linux 2.6.14.3 i686] 19:37:00 up 59 days, 5:36, 1 user, load average: 0.32, 0.16, 0.06 -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: [blfs-support] VLC and Video4Linux (was: [blfs-book] r10987 ...)
Fernando de Oliveira wrote these words on 02/02/13 11:10 CST: Forgot to say that I used the new instructions including the patch, to install VLC. I could not find in the page an explanation for the necessity of the patch, but do not remember if there are explanations for other patches. There are ?tens/hundreds? of patches in BLFS and none of them have any explanation in the book as the explanation is in the header of the patch. Patches are text files that should have the explanation you are looking for embedded in the patch. As far as your previous message goes, I do not really understand what you are asking. Video4Linux is a dependency of many other packages in BLFS. What exactly is your point? -- Randy rmlscsi: [bogomips 1003.23] [GNU ld version 2.16.1] [gcc (GCC) 4.0.3] [GNU C Library stable release version 2.3.6] [Linux 2.6.14.3 i686] 19:47:01 up 59 days, 5:46, 1 user, load average: 0.37, 0.21, 0.11 -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
Re: [blfs-support] VLC and Video4Linux (was: [blfs-book] r10987 ...)
--- Em sáb, 2/2/13, Randy McMurchy escreveu: De: Randy McMurchy Assunto: Re: [blfs-support] VLC and Video4Linux (was: [blfs-book] r10987 ...) Para: BLFS Support List Data: Sábado, 2 de Fevereiro de 2013, 22:52 Fernando de Oliveira wrote these words on 02/02/13 11:10 CST: Forgot to say that I used the new instructions including the patch, to install VLC. I could not find in the page an explanation for the necessity of the patch, but do not remember if there are explanations for other patches. There are ?tens/hundreds? of patches in BLFS and none of them have any explanation in the book as the explanation is in the header of the patch. Patches are text files that should have the explanation you are looking for embedded in the patch. Yes, you are right. As far as your previous message goes, I do not really understand what you are asking. Video4Linux is a dependency of many other packages in BLFS. What exactly is your point? -- Randy Three points. 1. Why is v4l-utils required dependency for VLC in LFS-6.5? 2. Should ivtv-ctl, from v4l-utils, be removed? In ArchLinux it is removed. 3. Thank who included v4l-utils as dependency. []s, Fernando -- http://linuxfromscratch.org/mailman/listinfo/blfs-support FAQ: http://www.linuxfromscratch.org/blfs/faq.html Unsubscribe: See the above information page
