kde Digest, Vol 115, Issue 5

[杜秀涛]

thank U all you guys:)

TO Rex: my laptop is HP520 with a CORE DUAL chip, performance is not good,
but not too bad.
disable blur effects didn't makes it much more better. but thank u for your
message:)

TO Duncan: THANK YOU for your kindly replies!! you are very kind to suggest
so many clues on
my problem, Thank you. I didn't try them, because I found the next one...

TO Nathan: I have tried your solution, PERFECT for me! Thank you. I first
set both /tmp and
/var/tmp to 24M, IT really turns my laptop on, tho it's not too fast, but
it's not SLOOOOW,
it turns better. then I have tried 50M for both of the tmp directory,
things are similar, sometiime still takes times to response to my login or
my click action. Thank you again.

But mounting tmp dirs to ram is still not a finally solution in my opinion,
I have just 1 gig
ram on my laptop, is there any other way to make the tmp dirs on flash disk
runs faster?
what important is that my filesystem on / is ext2, should I use another
filesystem?

And I have faced another problem, I runs "swapon -s", it shows me like this:
Filename Type Size Used Priority
/dev/sdb2 partition 1048572 0 -1
Is that OK? 0 used, -1 as priority! seems like it didn't take effects?
could the swap partition speed up my system?

Again, Thank you in advance!

2012/10/11 <kde-request at mail.kde.org>

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> When replying, please edit your Subject line so it is more specific
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> Today's Topics:
>
>    1. Re: Icon widget lost (Duncan)
>    2. THE kde desktop is slow... (???)
>    3. Re: THE kde desktop is slow... (Rex Dieter)
>    4. Re: THE kde desktop is slow... (Duncan)
>    5. Re: THE kde desktop is slow... (Stephen Dowdy)
>    6. Re: Icon widget lost (Mirko K.)
>    7. Re: THE kde desktop is slow... (Nathan England)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Wed, 10 Oct 2012 13:18:43 +0000 (UTC)
> From: Duncan <1i5t5.duncan at cox.net>
> To: kde at postbox.kde.org
> Subject: Re: [kde] Icon widget lost
> Message-ID: <pan.2012.10.10.13.18.44 at cox.net>
> Content-Type: text/plain; charset=UTF-8
>
> Mirko K. posted on Wed, 10 Oct 2012 11:32:44 +0200 as excerpted:
>
> > Say, *is* there actually an icon/launcher widget/plasmoid that starts
> > *one* individual program, like .desktop file based icons? Or do I
> > confuse that with the Quicklauncher?
>
> That's an interesting question.  Short answer, I don't know.
>
> Back in still severely buggy 4.2/4.3 period, when I switched from kde3, I
> distinctly remember a number of individual desktop launcher icons, one
> each for the few I had on my kde3 desktop.
>
> However, being the heavy customizer I am, and with the various bugs
> triggering crashes and restarts, those didn't stay around long, and I
> wasn't yet familiar enough with the system to know which plasmoid they
> actually were, so I really don't know if they were simply quicklaunchers
> configured with just a single icon each, or if they were export-only
> plasmoids that aren't available in the plasmoid explorer, or something
> else.
>
> Plus of course not knowing what they actually were, for all I know they
> were some plasmoid available in early kde4, that was phased out somewhere
> along the line.
>
> I've sort of wondered what they were a few times, but icon-based
> launching isn't really my thing anyway, so it's not like I'd be likely to
> use them.  But I'd still like to know for sure what they were, just on
> principle.  (FWIW I prefer hotkey based launching, and ended up scripting
> my own solution after kde4 broke the khotkey multikey support I had used
> in kde3.)
>
> > I suspect that nothing got lost. But I added more icons to the
> > Quicklauncher and when I later added that one to the desktop/panel I got
> > confused as I expected a simple program starter.
> >
> > I just removed all but one icon from it and the result looks exactly
> > like I had in mind.
>
> That could well be it.
>
> > Feeling slightly stupid now. :-D
>
> Eh, my theory is that sometimes asking that so-called "stupid" question
> is often part of finding the answer.  Delay the post hoping to come up
> with the answer yourself, and it doesn't come.  10 minutes after posting,
> tho, you have it!
>
> That's been my experience anyway.  So these days, if it looks like that
> sort of question, I try to post it as soon as possible, figuring the
> sooner I post, the sooner I'll have the answer, regardless of whether
> it's because I figure it out 10 minutes after posting, or because someone
> else points me to it.
>
> =;^)
>
> --
> Duncan - List replies preferred.   No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master."  Richard Stallman
>
>
>
> ------------------------------
>
> Message: 2
> Date: Wed, 10 Oct 2012 22:59:57 +0800
> From: ??? <duxiutao at gmail.com>
> To: kde at mail.kde.org
> Subject: [kde] THE kde desktop is slow...
> Message-ID:
>         <CADF0KHcw7xGW0kqZmEE6j6xht8+R0Jcqhdf=
> 6H4ARD8tVc6Ymg at mail.gmail.com>
> Content-Type: text/plain; charset=UTF-8
>
> Hi friends!I am using kde now, I just compiled it. every things seems
> fine, but the speed...
> tow problems:
> 1. I takes long time to load the desktop successfully, from pressing
> enter to I can see the beautiful desktop background-image, almost
> takes 2 minutes;
> 2. it often hangs for ten or 30 seconds to response to an mouse
> action, For example, I want to open the konqueror ,or opera. both of
> them takes long time to start up successfully. when they are
> "starting", others actions will be affected slow down.
>
> here is some infos about my OS and kde
> OS:Gentoo -- the os is totally on a flash disk with 16G capacity
> KDE:4.9.2
> Graphic:Intel Integrated Mobile 945GSE
>
> So, what could I do?
> Thank you for your kindness patience in advance!
>
> --
> To know the recursion, you must first know the recursion.
>
>
> ------------------------------
>
> Message: 3
> Date: Wed, 10 Oct 2012 11:12:04 -0500
> From: Rex Dieter <rdieter at math.unl.edu>
> To: kde at postbox.kde.org
> Subject: Re: [kde] THE kde desktop is slow...
> Message-ID: <k546oi$3dv$1 at ger.gmane.org>
> Content-Type: text/plain; charset="UTF-8"
>
> ??? wrote:
>
> > Hi friends!I am using kde now, I just compiled it. every things seems
> > fine, but the speed...
> > tow problems:
> > 1. I takes long time to load the desktop successfully, from pressing
> > enter to I can see the beautiful desktop background-image, almost
> > takes 2 minutes;
> > 2. it often hangs for ten or 30 seconds to response to an mouse
> > action, For example, I want to open the konqueror ,or opera. both of
> > them takes long time to start up successfully. when they are
> > "starting", others actions will be affected slow down.
>
>
> likely slow "blur" desktop effect, I see that on my older intel945-based
> laptop too.  disable the blur effect, and it's much faster.
>
> -- rex
>
>
>
> ------------------------------
>
> Message: 4
> Date: Wed, 10 Oct 2012 17:10:46 +0000 (UTC)
> From: Duncan <1i5t5.duncan at cox.net>
> To: kde at postbox.kde.org
> Subject: Re: [kde] THE kde desktop is slow...
> Message-ID: <pan.2012.10.10.17.10.47 at cox.net>
> Content-Type: text/plain; charset=UTF-8
>
> ??? posted on Wed, 10 Oct 2012 22:59:57 +0800 as excerpted:
>
> > Hi friends!I am using kde now, I just compiled it. every things seems
> > fine, but the speed...
> > tow problems:
> > 1. I takes long time to load the desktop successfully, from pressing
> > enter to I can see the beautiful desktop background-image, almost takes
> > 2 minutes;
> > 2. it often hangs for ten or 30 seconds to response to an mouse action,
> > For example, I want to open the konqueror ,or opera. both of them takes
> > long time to start up successfully. when they are "starting", others
> > actions will be affected slow down.
> >
> > here is some infos about my OS and kde OS:Gentoo -- the os is totally on
> > a flash disk with 16G capacity KDE:4.9.2 Graphic:Intel Integrated Mobile
> > 945GSE
>
> Hi fellow kde gentooer! =:^)
>
> I haven't updated it in awhile (it's not my primary system), but I run kde
> on my original Acer Aspire One netbook (AOA-150L model, Atom n270,
> upgraded memory maxed out to 1.5 gig, pre-poulsbo Intel graphics tho I
> don't recall what exactly, but I specifically ordered the model with the
> "spinning rust" hard drive, 120 gig, as I was looking for 100 gig plus).
>
> KDE runs fine on that, tho it /has/ been awhile since I updated; I think
> it's still running late 4.6 so it has been over a year.
>
> Rex has the right idea, tho.  Try experimenting with the effects.  I
> don't recall having serious issues on that system here, but some Intel
> graphics hardware is known to have issues with blur, etc.  Apparently the
> drivers claim the hardware handles certain effects, but really emulates
> them in software.  That's good enough for a lot of games, which often
> require a feature but then don't really use it, but it makes the desktop
> SLOOOWWW when effects using those features are active.  Fortunately,
> individual effects can be toggled on or off. =:^)
>
> That option's located on the middle tab of desktop effects, in kde
> settings, workspace appearance and behavior, BTW.
>
> Meanwhile, you don't mention your memory capacity.  If it's a similar
> netbook, many of them shipped with half a gig or so of RAM.  I upgraded
> mine to 1.5 gig (the half-gig soldered on, and a 1 gig stick upgrade, the
> max the bios was said to recognize) really early on, before replacing its
> default Linux with gentoo, so don't really know how kde would work on it
> with the original half-gig, but that /might/ be an issue.  Going into
> swap on those early SSDs was SLOW, as writing to them was slow.  Plus SSDs
> are limited write-cycle, so I bought the netbook with the 120 gig
> conventional hard drive option and the intent to upgrade the RAM, which I
> think I did within days of purchase.
>
> You can also check the konqueror performance option that keeps a copy
> loaded at all times.  On a low-memory system that'll be a tradeoff,
> taking longer to load kde if it loads konqueror with it, but in theory
> it'll start konqueror faster since it's already loaded.  OTOH, if the
> system's really low on memory, it'll swap out that konqueror instance,
> and will thus be loading it back in from SSD anyway.  Between that and
> the fact that it'll be taking memory even when you aren't "running" it,
> if you're swapping anyway, turning that option off even if it means
> longer konqueror load times may help with other apps.
>
> You'd also want to consider the minimize memory usage option.
>
> Both of those options are in konqueror settings, performance.
>
>
> Meanwhile, since you're on gentoo and can, especially on a small system
> like a netbook, consider USE=-semantic-desktop if at all possible.  It
> make a BIG difference on my main system, even tho it's not as resource
> constrained as the netbook.  That DOES mean you'll need to find
> alternatives for any kdepim apps you run, but it should be faster.  Here,
> it was *MUCH* faster -- I was surprised at HOW much faster!  FWIW, I run
> claws-mail for both mail (replacing kmail) and feeds (replacing akregator)
> now, tho the conversion from kmail was a bit tough.  But it's worth it!
> =:^)
>
> --
> Duncan - List replies preferred.   No HTML msgs.
> "Every nonfree program has a lord, a master --
> and if you use the program, he is your master."  Richard Stallman
>
>
>
> ------------------------------
>
> Message: 5
> Date: Wed, 10 Oct 2012 13:34:00 -0600
> From: Stephen Dowdy <sdowdy at ucar.edu>
> To: kde at postbox.kde.org
> Subject: Re: [kde] THE kde desktop is slow...
> Message-ID: <5075CDA8.2070001 at ucar.edu>
> Content-Type: text/plain; charset=UTF-8
>
> ??? wrote, On 10/10/2012 08:59 AM:
> > Hi friends!I am using kde now, I just compiled it. every things seems
> > fine, but the speed...
> > tow problems:
> > 1. I takes long time to load the desktop successfully, from pressing
> > enter to I can see the beautiful desktop background-image, almost
> > takes 2 minutes;
> > 2. it often hangs for ten or 30 seconds to response to an mouse
> > action, For example, I want to open the konqueror ,or opera. both of
> > them takes long time to start up successfully. when they are
> > "starting", others actions will be affected slow down.
> >
> > here is some infos about my OS and kde
> > OS:Gentoo -- the os is totally on a flash disk with 16G capacity
> > KDE:4.9.2
> > Graphic:Intel Integrated Mobile 945GSE
> >
> > So, what could I do?
> > Thank you for your kindness patience in advance!
>
> massive login latencies (1-2 min) are often the cause of DNS or
> network i/f issues...  Make sure your resolv.conf is happy, and that
> your network interfaces are as well (make sure that your loopback
> i/f is active)
>
> Check in the .xsession-errors file for any obvious problems.
>
> quickly...
>
>     host www.google.com
>     host $(hostname)
>     ping localhost
>     ping 127.0.0.1
>     ping $(hostname)
>     netstat -in
>
> if any of those are taking a long time, you probably have a network issue)
>
> in xterm or konsole, also check :
>     echo $DISPLAY
> should be :0.0 (don't ever globally directly set DISPLAY.  Change it
> only for a specific instance manually and interactively as needed)
>
> I'm not sure about issues you may be facing booting from flash-disk,
> but if you're *swapping* to flash disk, that may ultimately create a
> VERY slow flash disk.
>
> --stephen
> --
> Stephen Dowdy  -  Systems Administrator  -  NCAR/RAL
> 303.497.2869   -  sdowdy at ucar.edu        -
> http://www.ral.ucar.edu/~sdowdy/
>
>
>
> ------------------------------
>
> Message: 6
> Date: Wed, 10 Oct 2012 22:05:30 +0200
> From: "Mirko K." <mirkok.lists at googlemail.com>
> To: kde at postbox.kde.org
> Subject: Re: [kde] Icon widget lost
> Message-ID: <k54kbg$8gn$1 at ger.gmane.org>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 10.10.2012 15:18, Duncan wrote:
> > Mirko K. posted on Wed, 10 Oct 2012 11:32:44 +0200 as excerpted:
> >
> >> Say, *is* there actually an icon/launcher widget/plasmoid that starts
> >> *one* individual program, like .desktop file based icons? Or do I
> >> confuse that with the Quicklauncher?
> >
> > That's an interesting question.  Short answer, I don't know.
>
> Well, the answer is most probably no. I just check on my Slackware
> 13.1 box with KDE 4.4.3 and an openSUSE 11.2 LiveCD with KDE 4.3.1.
>
> Neither has such a plasmoid, and actually on the Slackware desktop,
> there was a single-icon quicklauncher which I had put there (damned,
> are my glorious Slacky times really gone ;-) )
>
> So, scratch this. /-)
>
> >> Feeling slightly stupid now. :-D
> >
> > Eh, my theory is that sometimes asking that so-called "stupid" question
> > is often part of finding the answer.  Delay the post hoping to come up
> > with the answer yourself, and it doesn't come.  10 minutes after posting,
> > tho, you have it!
>
> Yep, I know what you mean. :-D
> Still, I tend feel a little embarrassed when asking a question which
> turns out to be a time waste or a simple oversight. But it's like a
> friend of mine often says:
>
> - Knock, knock!
> - Who's there?
> - Intelligence.
> - Back in an hour!
>
>
> Thanks for your time and efforts!
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Wed, 10 Oct 2012 13:27:46 -0700
> From: Nathan England <nathan at nmecs.com>
> To: kde at mail.kde.org
> Subject: Re: [kde] THE kde desktop is slow...
> Message-ID: <5075DA42.5030206 at nmecs.com>
> Content-Type: text/plain; charset=UTF-8; format=flowed
>
> On 10/10/2012 7:59 AM, ??? wrote:
> > Hi friends!I am using kde now, I just compiled it. every things seems
> > fine, but the speed...
> > tow problems:
> > 1. I takes long time to load the desktop successfully, from pressing
> > enter to I can see the beautiful desktop background-image, almost
> > takes 2 minutes;
> > 2. it often hangs for ten or 30 seconds to response to an mouse
> > action, For example, I want to open the konqueror ,or opera. both of
> > them takes long time to start up successfully. when they are
> > "starting", others actions will be affected slow down.
> >
> > here is some infos about my OS and kde
> > OS:Gentoo -- the os is totally on a flash disk with 16G capacity
> > KDE:4.9.2
> > Graphic:Intel Integrated Mobile 945GSE
> >
> > So, what could I do?
> > Thank you for your kindness patience in advance!
> >
> I would be willing to bet it is the flash disk at fault. I have built
> several systems using various kinds of flash devices for filesystems. I
> have always blamed it on KDE's use of tons of small files and poor small
> file performance of flash devices. Try moving all your temp directories
> to ram and see if that makes a difference.
>
> Try mounting /tmp and /var/tmp to a ramdisk and see if that makes a
> difference.
>
> My /etc/fstab looks like this:
>
> tmpfs /tmp tmpfs mode=0777,size=24M,nosuid 0 0
> tmpfs /var/tmp tmpfs mode=0777,size=24M,nosuid 0 0
>
>
> Try doing the same and let us know how it works.
>
>
>
>
> ------------------------------
>
> ___________________________________________________
> ___________________________________________________
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> End of kde Digest, Vol 115, Issue 5
> ***********************************
>



-- 
Hello World！
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