Bar - Lightweight xcb-based bar

A lightweight bar based on XCB (yay).
Provides foreground/background color switching along with text alignment (screw you dzen!), nothing less and nothing more.
Read this first.
Grab the code from Github
Last edited by TheLemonMan (2012-07-18 15:31:51)

For some reason I'm having problems with bar.
Here is my config.h
/* The height of the bar (in pixels) */
#define BAR_HEIGHT 18
/* The thickness of the underline (in pixels) */
#define BAR_UNDERLINE_HEIGHT 2
/* Whether to put the bar at the screen bottom or not */
#define BAR_BOTTOM 0
/* The font used for the bar */
#define BAR_FONT "-*-terminus-medium-r-normal-*-12-*-*-*-c-*-*-1"
/* Color palette */
#define COLOR0 0x1A1A1A /* background */
#define COLOR1 0xA9A9A9 /* foreground */
#define COLOR2 0x303030
#define COLOR3 0xF92672
#define COLOR4 0xA6E22E
#define COLOR5 0xFD971F
#define COLOR6 0x66D9EF
#define COLOR7 0x9E6FFE
#define COLOR8 0xAF875F
#define COLOR9 0xCCCCC6
laptop ~ $ echo test | bar
Couldn't load the font
community/terminus-font 4.36-2 [installed]
A superb, monospace bitmap font (for X11 and console)

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Is APEX the tool for a lightweight browser based query only front end?

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ADF Faces or APEX for a lightweight browser-based front end.

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Thanks for those pointers Grant.
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Lightweight (terminal based?) address book manager that supports vcard

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iBertus wrote:Also, if anyone could give an argument aginst FVWM, I'm listening.
You should go tiling wm so you can have a Giant irc window and 5 tiny terminals smashed together on the side. more productive:)
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Will Genius bar help?

I continue to have a problem with my MAC Pro tower. The bottom line is that it freezes up after inactivity, and I have to shut it down using the power button. Then I have to use my Snow Leopard disk to run the disk utility to clear up the problem "Invalid Volume Directory Count" (can't do it with the regular disk utility). This has been going on for a while, even deleted, formatted and restored my drive, but it is still happening. I have never done so, but does this sound like something that could be taken care of by the Genius Bar? This is my first MAC, and have always had in house service on my PC's, very convenient. I cannot generate this problem, it has a mind of its own. To use the Genius Bar, I would have to bring my tower to the store (not a lightweight), and, based on the nature of the beast, would probably have to leave it. Everything else seems to working fine (monitor, keyboard, mouse, tablet, etc.) so I am hoping that I would only have to bring in the tower. Has anybody had this experience? Can I call my Apple Store to find out what I would need to bring in, or would they tell me when I make a reservation?
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Buy Alsoft Disk Warrior and run that from a small partition.
Clone your system with SuperDuper.
I would learn how to do system maintenance.
Test your RAM. Memtest/Rember and also run the Apple Hardware Test off the OEM DVD.
You may need to start fresh on a newly formatted hard drive. Also any printer, devices and look for anything that isn't compatible with 10.6.x. And don't restore anything until the problem goes away; and, you have cloned your system to another drive or disk image.
Apple Disk First Aid is not as strong or as reliable as Alsoft's.

ZFS clones and snapshot... can't delete snapshot were clone is based on

root@solaris [/] # zfs list -r
NAME   USED AVAIL REFER MOUNTPOINT
home   100K 9,78G    21K /datahome
root@solaris [/] # zpool list
NAME   SIZE   USED AVAIL    CAP HEALTH ALTROOT
home 9,94G   108K 9,94G     0% ONLINE -
root@solaris [/] # zfs create home/test
root@solaris [/] # zfs snapshot home/test@today
root@solaris [/] # zfs clone home/test@today home/myclone
root@solaris [/] # zfs list -r
NAME              USED AVAIL REFER MOUNTPOINT
home              138K 9,78G    23K /datahome
home/myclone         0 9,78G    21K /datahome/myclone
home/test          21K 9,78G    21K /datahome/test
home/test@today      0      -    21K -
root@solaris [/] # zfs promote home/myclone
root@solaris [/] # zfs list -r
NAME                 USED AVAIL REFER MOUNTPOINT
home                 140K 9,78G    24K /datahome
home/myclone          21K 9,78G    21K /datahome/myclone
home/myclone@today      0      -    21K -
home/test               0 9,78G    21K /datahome/test
root@solaris [/] # zfs destroy home/myclone
cannot destroy 'home/myclone': filesystem has children
use '-r' to destroy the following datasets:
home/myclone@today
root@solaris [/] # zfs destroy home/myclone@today
cannot destroy 'home/myclone@today': snapshot has dependent clones
use '-R' to destroy the following datasets:
home/test
root@solaris [/] #Why can't I destroy a snapshot? home/myclone is now a volume that is not linked to home/test.
So I would expect to be able to delete the snapshot from myclone.
Maybe I misunderstand something about how this works or I have the wrong expectations.
I would expect a clone to be something like a copy that is independent of the volume being cloned.

The idea is that when you create a clone, it is lightweight and based on the snapshot. That's what makes it so fast. You're not copying every block in the filesystem. So the snapshot is what ties together the parent filesystem and the clone.
For the clone to be independent, you'd have to copy all the blocks. There's no option to do that within the clone process. So as long as both the parent filesystem and the clone filesystem are around, the snapshot has to exist as well.
Darren

High Memory Usage and a few other problems

I install Oracle DB 11g R1 into a Window 2003 Server virtual machine (VirtualBox) running on Ubuntu Linux. I did just a "plain jane" install accepting most, if not all, the defaults. When I start the service though, the Mem Usage shoots to @ 400 megs and there are several java.exe's that are also running each with anywhere between 80 and 130 megs. Plus, its seems that they never seem to 'settle'; Oracle.exe and one of the java.exe's are always taking up basically 100% of the processor.
This is just CRUSHING my poor little machine.
Any way to throttle these guys back? I can reinstall if needed. Its not like I've done much with it yet.
Thanks!

Your 400M seems quite lightweight - probably based on a VM allocation of 1GB. You are starving the poor thing. You possibly missed this section in the Install manual before you did the install (http://download.oracle.com/docs/cd/B28359_01/install.111/b32006/reqs.htm#i1011417)
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Any user connections will want roughly 30-50M / connection, although that can vary wildly.
Enterprise Manager (DB Console), being Java (JEE) based, will gobble as much as you give it, and then some.
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High RAM memory usage compared to other systems

I'm suffering with memory usage problems, only in open 2 tabs of facebook(it's only for example, any 'heavy' page freeze also) in firefox*(for example also, but this occur in chromium also) freeze computer.
I've 1GB of memory, it isn't big but also isn't very little.
I'm using XFCE with compiz (yes, compiz, since use a very lightweight openbox-based session doesn't help, then compiz...) when system start (after login) system is consuming 130MB approximately of RAM.
after 1 hour if close all open apps and see memory usage again consume is something about 350MB, "only solution" is reboot.
all applications(htop,free -m,xfce's system monitor...) that I've tried to monitor memory usage show above scenario, except the 'ps_mem' script in AUR.
in the 'ps_mem' script the result is following (with opera browser open, less memory offensive browser but I really prefer firefox):
Private + Shared = RAM used Program
88.0 KiB + 10.0 KiB = 98.0 KiB agetty
380.0 KiB + 34.5 KiB = 414.5 KiB sshd
408.0 KiB + 93.0 KiB = 501.0 KiB gpg-agent (2)
372.0 KiB + 142.0 KiB = 514.0 KiB avahi-daemon (2)
456.0 KiB + 60.0 KiB = 516.0 KiB systemd-logind
280.0 KiB + 261.0 KiB = 541.0 KiB sh
476.0 KiB + 103.5 KiB = 579.5 KiB xfconfd
476.0 KiB + 153.5 KiB = 629.5 KiB gvfsd
604.0 KiB + 34.5 KiB = 638.5 KiB systemd-udevd
588.0 KiB + 102.5 KiB = 690.5 KiB dbus-launch (3)
576.0 KiB + 119.5 KiB = 695.5 KiB sudo
668.0 KiB + 77.5 KiB = 745.5 KiB cups-browsed
620.0 KiB + 179.5 KiB = 799.5 KiB at-spi2-registryd
804.0 KiB + 67.0 KiB = 871.0 KiB htop
756.0 KiB + 131.0 KiB = 887.0 KiB gconfd-2
800.0 KiB + 126.0 KiB = 926.0 KiB upowerd
752.0 KiB + 183.5 KiB = 935.5 KiB xscreensaver
920.0 KiB + 85.0 KiB = 1.0 MiB cupsd
876.0 KiB + 241.0 KiB = 1.1 MiB gvfsd-fuse
692.0 KiB + 429.0 KiB = 1.1 MiB systemd-journald
880.0 KiB + 273.5 KiB = 1.1 MiB at-spi-bus-launcher
1.2 MiB + 125.0 KiB = 1.3 MiB udisksd
1.4 MiB + 486.5 KiB = 1.9 MiB dbus-daemon (5)
1.4 MiB + 533.5 KiB = 1.9 MiB panel-6-systray
1.5 MiB + 430.0 KiB = 2.0 MiB lightdm (2)
1.6 MiB + 572.0 KiB = 2.1 MiB xfce4-session
1.5 MiB + 683.0 KiB = 2.2 MiB panel-5-datetim
1.5 MiB + 706.5 KiB = 2.2 MiB panel-2-actions
1.6 MiB + 723.0 KiB = 2.3 MiB panel-4-systeml
2.0 MiB + 543.5 KiB = 2.5 MiB xfsettingsd
2.0 MiB + 579.5 KiB = 2.6 MiB systemd (3)
2.3 MiB + 815.0 KiB = 3.1 MiB emerald
2.8 MiB + 578.5 KiB = 3.3 MiB gnome-keyring-daemon (3)
3.2 MiB + 946.5 KiB = 4.1 MiB zsh (2)
16.1 MiB + -12144.0 KiB = 4.2 MiB polkitd
4.1 MiB + 465.0 KiB = 4.6 MiB notify-osd
4.5 MiB + 1.6 MiB = 6.2 MiB xfce4-panel
5.1 MiB + 1.2 MiB = 6.3 MiB panel-7-mixer
7.7 MiB + 1.4 MiB = 9.0 MiB xterm (2)
12.0 MiB + 636.0 KiB = 12.6 MiB opera:libflashp
24.3 MiB + -10774.5 KiB = 13.8 MiB Xorg
18.6 MiB + 1.1 MiB = 19.7 MiB gnome-do (2)
23.2 MiB + 2.4 MiB = 25.6 MiB compiz
168.4 MiB + 3.2 MiB = 171.7 MiB opera
320.1 MiB
=================================
as you can see in 'ps_mem' memory usage isn't nothing absurdly it's ok.
another example, this problem stop me make certain things, for example is impossible browsing in web while programming in eclipse, this is very uncomfortable.
other thing, this not occur in Windows XP, I can open more than 10 tabs in firefox, and eclipse open, etc...
any needing information, tell-me!
firefox*: with memory cache turned off in about:config
Last edited by hotvic (2013-08-12 17:42:21)

hotvic, could you please change the title to something more descriptive? 'memory problems' sounds like you have problems e.g. remembering / recalling things, which is not an Arch issue ;P
kenny3794 wrote:
I've had some limiting performance with browsers lately (Firefox and Chromium). I found it had a considerable cache size utilizing lots of fragmented space on my home directory. I cleared the cache and have since set a limit to the cache size of 30 MB for Firefox. Between multiple users across multiple browser sessions, I had at least 2 GB of cache data on my 10 GB home partition! So far (1 day), this has been helpful. Perhaps this could help you also?
Ken
OP is talking about RAM, not HDD space.

File Browsing for Freaks (i.e. 'advanced users')

I'm currently searching a simple, lightweight, shell-based file-browser. I'm not searching a file-manager, too much bloat in it. I don't want to manage my files through a file-manager, I prefer to use cp, mv, vi/nano etc..
I just want a file-browser which I can use to browse directories on my system through an ncurses-based interface.
It should just show me the content of a directory and give me a one-line CLI-Prompt at the bottom as the Midnight Commander does, so I can execute my commands (cp, mv, vi/nano etc..) directly from the file-browser
Do you know ncmpc? Or cplay?
I'm searching a file-browser with an interface which resembles the one ncmpc and/or cplay uses.
If you know something like that what I'm searching, drop me a line.
Last edited by azerty (2007-09-04 10:24:34)

Gilneas wrote:Why not just run an mc-like ls after cd'ing?
I use this: ls -l -a --color=auto -h -F --group-directories-first
Which I have aliased to just l
I played around with different tools in the last days and I found out some things which can be useful.
Possibility 1:
'~$: ls -l -a --color=auto -h -F --group-directories-first | w3m'
In this case w3m is used as pager for displaying a directory's content.
But one could also use 'more', 'less' or simply '~$: ls -l -a --color=auto -h -F --group-directories-first' without any pager.
Possibility 2:
'~$: w3m <path/to/dir>'
By default this gives you a full dual panel view with browse-able ('click-able') directories, content listing and viewing (not editing AFAIK) the content of text files.
You're even able to customize the panel-, format- and sorting-type by simply using 3 selection fields at the top.
I think using w3m as directory pager and file viewer *could* be a compromise between the blank ls and a more powerful file browser.
Possibility 3:
'~$: lynx <path/to/dir>'
More powerful than w3m with (at least) the same customization possibilities.
Additionally you can specify a default editor (e.g. Vi, Nano etc.) in the lynx config, after this you're able to select a text file and [ENTER] to open your preferred editor and view/modify the selected file. Modify it, save, quit the editor and continue browsing your system with lynx. Lynx' capabilities go even further: You can create, modify (move/rename) and delete directories.
Amazing, don't you think?
Unix and its abilities to combine different tools for a specific task never ceases to amaze me.
Last edited by azerty (2007-09-04 10:35:16)

Kaffeine embedded crash fixed when compiled with libxcb support?

From kaffeine website:
Embedded Kaffeine crash fixed.
This long standing bug is now fixed in current svn ...
In order to make it possible, we have ported Kaffeine and xine to xcb (a thread-safe replacement for xlib).
You can give it a try right now:
1) install libxcb=>1.0
2) install current xine-lib cvs (it contains xcb based video output plugins: xshm and xv)
2) install current Kaffeine svn
Notes
a) Both xine-lib and Kaffeine have to be compiled with xcb support (autodetected, check configure results).
b) Kaffeine will still work with xlib based video out plugins if compiled without xcb (but then, no fix!)
From 0.8.4 changelog:
* xine-part: support for xcb. Requires libxcb 1.0 and xine-lib 1.1.5. Fixes several issues.
Any reason not to incorporate this? If it lives up to it's promises It could mean kde users only need ONE media player :-) (I have 2 installed just to get DVD menus and embedding in konqueror without crashing)
Any thoughts?
Cheers,
Steve.

I felt that the laptop was possibly overheating and that is why I started down the road to call "customer support", thinking that a fan went out or there was damage to hardware due to it over heating. And that road got me no where in a fast manner, and two "techs" telling me it was a software related issue and that I needed to reformat the laptop (twice) and re-install to factory settings. Even when I did this, it still had the issue and they again told me that it was software related when there was no software on the computer except for Windows 7. The only thing that customer support helped me with is the knowledge of next time I buy a laptop, but Dell or any other laptop besides a Toshiba. That is too bad.
Anyway, I tried to continue on with my thinking of a possible over heating issue, so I blew air into the vents and fins of the laptop. A lot of dust came out. I kept blowing air into the vents until no more dust came.
My wife had to re-install everything again to her laptop after I got the major items re-installed. She has been running it for the last day or so with no issues. We hope that this was the issue. I know she enjoys the laptop when it was running well.
I guess we will see how it goes.

Keep tilda on top of wallpaper ("fork to background") ?

Hi there,
I'm running a lightweight system based on Openbox, tint2, PCManFM, and I use tilda as terminal emulator.
I really love to have it on top of my wallpaper, but I also have an Openbox keybind which shows my desktop (minimize all opened applications) and I would like to exclude tilda from that fonction, in order to have it everytime on top on my wallpaper, like conky does with the option "fork to background".
Could you help me with that, guys ?
Hey also, I would like tilda to capture the keys pressed when I'm my on my desktop. Actually, now, I have to click on the portion of the screen reserved to tilda, and then enter whatever command I want to type in my term.
Thanks ;]

I actually found out that clicking to the blue arrow will do that (untag the message from staying on top).
PJM
Got EasyXML?
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Aironet 1530 AP with Wireless Controller

The Aironet1530 AP datasheet suggests that it can be deployed as part of a lightweight controller based arrangement, but it does not appear as a supported AP on any of the controller s/w release notes that I've sio far looked at, could anyone advise?
Regards, Dave Gabb

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Thanks,
Scott
Help out other by using the rating system and marking answered questions as "Answered"

ZFS snapshot and SCP

Hi,
Any one can share the difference between the usage of ZFS snapshot/restoring the data and ordinary SCP to other host.
Regards
Siva

The idea is that when you create a clone, it is lightweight and based on the snapshot. That's what makes it so fast. You're not copying every block in the filesystem. So the snapshot is what ties together the parent filesystem and the clone.
For the clone to be independent, you'd have to copy all the blocks. There's no option to do that within the clone process. So as long as both the parent filesystem and the clone filesystem are around, the snapshot has to exist as well.
Darren

Content filters on samsung reality--not available?

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You might be referring to our DLP (Data Loss Prevention) seen on 6.0 and above. Below is a clip from our User Guide, you can search for that section to see if it fits your needs.
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Bar - Lightweight xcb-based bar

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