URxvt poor performance with Bitmap fonts

I'm trying to use a bitmap font with URxvt terminal and I find the performance is terrible after. If i use an XFT font it works perfect. When I set a bitmap font I can see the screen redraw while scrolling through vim and if another terminal is outputting lots of data the other terminals will slow to a crawl. Also when the terminal gains focus I will see a flicker occur as it redraws the text.
I tried using XTerm and it does not experience this problem at all. It only seems to be with URXvt that this problem occurs. I've tried several different bitmap fonts and it's the same for all of them. Again XFT works fine.
Any ideas?

I don't use testing, but have cairo-xcb installed from AUR, which is version 1.12.0-1. I just tried to replace it with the package in testing, but this did not have any effect. Downgrading cairo-xcb gives problems because of the libpng14 stuff. I will look for the source of a previous version and build it, to see if this is the problem.
edit...
You are right, the problem is cairo. I rebuild and installed cairo-xcb 1.10.2 and gvim was as quick as it used to be. When I upgrade it again it slows down.
Last edited by FreeTheBee (2012-04-03 20:26:04)

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Message was edited by mindchild at Jan 27, 2005 10:50 AM
Message was edited by mindchild at Jan 27, 2005 10:51 AM

Thx for quick replys. I forget to mention .. we also tried 10g v10.1.0.3 from instantclient yesterday.
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>
>
Markus Schaeffer wrote:
Hi,
we decided to implement batch input and went fromWeblogic Jdriver to Oracle Thin 9.2.0.6.
Our system are an Weblogic 6.1 cluster and a Oracle8.1.7 cluster.
Problem is .. with the new Oracle drivers ouractions on the webapp takes twice as long
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Edited by: Mads Frank on Feb 1, 2010 9:41 PM

Hi Henry, thank you for your suggestions although i´m not agree with you that 20 seconds is pretty good for that navigation step. The same query executed with BEx Analyzer takes only 1-2 seconds to do the drill down.
Actions
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# Version: 1.0.2
# Description: Configures the Hyper-V Virtual Switch and
#              Creates a Converged Fabric
# Version 1.0.0: Initial Script
# Version 1.0.1: Added the creation of SrIOV based VM Switches
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param
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$ManagmentOSIPv4="10.150.250.5"
$ManagmentOS2IPv4="10.250.251.5"
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$ManagmentDNS2="10.150.250.3"
$ManagmentDNS3="10.250.251.1"
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$LiveMigrationIPv4="10.253.250.1"
$CSVIPv4="10.100.250.1"
$CSV2IPv4="10.250.100.1"
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SR-IOV and teaming don't mix. The purpose of SR-IOV is to go straight from the virtual machine into the physical adapter and back, completely bypassing the entire Hyper-V virtual switch and everything that goes with it. Team or SR-IOV.
You're adding DNS servers to adapters that don't need them. Inbound traffic is going to be confused, to say the least. The only adapter that should have DNS addresses is the management adapter. For all others, you should run Set-DnsClient -RegisterThisConnectionsAddress
$false.
I don't know that I'm reading your script correctly, but it appears you have multiple adapters set up for management. That won't end well.
It also looks like you have QoS weights that total over 100. That also won't end well.
I don't know that these explain poor performance like you're describing, though. It could just be that you're a victim of network adapters/drivers that have poor support for VMQ. Bad VMQ is worse than no VMQ. But, VMQ+teaming+SR-IOV sounds like recipe for
heartache to me, so I'd start with that.
Eric Siron Altaro Hyper-V Blog
I am an independent blog contributor, not an Altaro employee. I am solely responsible for the content of my posts.
"Every relationship you have is in worse shape than you think."

Poor Performance with 10.1

I'm on a windows xp sp 3 machine with an x800 xt pe graphics card using the latest catalyst drivers from Ati. Ever since I updated flash, I'm getting very poor performance during 720p with acceleration enabled. I'm also getting bad performance when it's disabled. Is there an issue with the 10.2 legacy (ati) drivers not enabling hardware acceleration with 10.1 flash?
BTW I went back to using 10.0.42.34 flash and everything is running fine again.

I've also noticed poor performance since installing the 10.1 plugin. Not just in HD video etc, but in general use. So much for "improved performance"...
No idea on solutions at this stage - In the process of downgrading to previous version to see if that fixes my problems

GTK font scaling with bitmap fonts

I wish to use GohuFont, a bitmap font, for my GTK windows which has embedded 11pt and 14pt sizes. These usually work fine but in cases where applications attempt to draw fonts larger than 14pt it uses some TTF font instead. Is it possible to change the font that GTK defaults to to something different, e.g. GohuFont at 14pt, bold?
The other solution I can think of would be to spoof larger fonts by just copying the file for the 14pt font and modifying its header to be read as 16pt or something; I've found programs to modify the characters themselves but not one that'll let me change what size the font is "read" as.
Last edited by mot.def (2015-05-06 18:19:25)

Nah. I doubt you've played hard enough with the multitude of settings that Infinality provides. I have heard your argument before, and it's *always* by people who show extremely little evidence of what they've actually tried, so it always seems to be laziness of the tweaker rather than something lacking in Infinality.
E.g. just this one setting has a huge effect, with different values (it's a mirror-image, so has 3 values to tweak):
export INFINALITY_FT_FILTER_PARAMS="14 20 32 20 14"
If your eyes are giving you discomfort, then you really need to check with an optician, and/or get a better screen, purely for the sake of your health.

Poor performance with SVM mirrored stripes

Problem: poor write performance with configuration included below. Before attaching striped subdevices to mirror, they write/read very fast (>20,000 kw/s according to iostat), but after mirror attachment and sync performance is <2,000 kw/s. I've got standard SVM-mirrored root disks that perform at > 20,000 kw/s, so something seems odd. Any help would be greatly appreciated.
Config follows:
Running 5.9 Generic_117171-17 on sun4u sparc SUNW,Sun-Fire-V890. Configuration is 4 72GB 10K disks with the following layout:
d0: Mirror
Submirror 0: d3
State: Okay
Submirror 1: d2
State: Okay
Pass: 1
Read option: roundrobin (default)
Write option: parallel (default)
Size: 286607040 blocks (136 GB)
d3: Submirror of d0
State: Okay
Size: 286607040 blocks (136 GB)
Stripe 0: (interlace: 4096 blocks)
Device Start Block Dbase State Reloc Hot Spare
c1t4d0s0 0 No Okay Yes
c1t5d0s0 10176 No Okay Yes
d2: Submirror of d0
State: Okay
Size: 286607040 blocks (136 GB)
Stripe 0: (interlace: 4096 blocks)
Device Start Block Dbase State Reloc Hot Spare
c1t1d0s0 0 No Okay Yes
c1t2d0s0 10176 No Okay Yes

I have the same issue and it is killing our iCal Server performance.
My question would be, can you edit an XSAN Volume without destroying the data?
There is one setting that I think might ease the pressure... in the Cache Settings (Volumes -> <Right-Click Volume> -> Edit Volume Settings)
Would increasing the amount of Cache help? Would it destroy the data?!?!?

PCMCIA gigabit cards are poor performance with lenovo n100

Hello,
I have a lenovo n100 and I tried two pcmcia gigabit cards (Dlink DGE 660TD and TRENDnet TEG-PCBUSR) with very poor performance. I tested with iperf (cat6 cable with Siemens Sinergie S300 server) and Windows, linux, normal config, tunned tcp parameters, the outcome is always the same, 200Mbits upload and 76Mbits for download.
Any sugestion?
Kind regards,
André P. Muga

lead_org wrote:
There is two type of PCMCIA, one is running at 16 bit another is running through 32 bit.
You can achieve the gigabit requirements quite comfortably with the 32 bit, but i think the 16 bit version is not going to be enough for the gigabit ethernet.
Running at Mhz??? I don't understand how that is anything to with data bandwidth.
Both are pcmcia2, 32 bits, gigabit ethernet, full duplex, cards.
The peak transfer rate is calculated by <bus speed MHz> * <bus width> = <Mbps>
Example:
Bus speed 33MHz, Bus width: 32bits
33 * 32 = 1056 Mbps or 132MBps
Bus speed 667MHz, Bus width: 32bits
667 * 32 = 21344Mbps or 2668MBps
The lenovo N100 has a 32 bit bus with 667MHz.... no limitation here.

Are there Issues with poor performance with Maverick OS,

Are there issues with slow and reduced performance with Mavericks OS

check this
http://apple.stackexchange.com/questions/126081/10-9-2-slows-down-processes
or
this:
https://discussions.apple.com/message/25341556#25341556
I am doing a lot of analyses with 10.9.2 on a late 2013 MBP, and these analyses generally last hours or days. I observed that Maverick is slowing them down considerably for some reasons after few hours of computations, making it impossible for me to work with this computer...

Photoshop laggy, poor performance with GPU enabled

I'm using Photoshop CS6 for some time now. I had enabled GPU usage earlier and I remember that Photoshop ran absolutely smoothly without and lag what-so-ever. This morning, all of a sudden, it has become extermely laggy. I don't understand the reason behind this. This had happened to me before as well but it became alright after a few days. This also happened to me once while using Photoshop CS5. I didn't install any plugin and didn't change any software. I also want to point out that I had 13.4 driver version when Photoshop was working fine, and now too I have the same driver version.
CPU: AMD Phenom II X4 955
Memory: 6 GB
Free storage: 8 GB
GPU: ATI Radeon HD 5850

I've also noticed poor performance since installing the 10.1 plugin. Not just in HD video etc, but in general use. So much for "improved performance"...
No idea on solutions at this stage - In the process of downgrading to previous version to see if that fixes my problems

Poor performance with a PL/SQL block

I have a problem with the a PL/SQL block which perform very poor when the criteria of a sub-query is to be compared with a local variable rather than a hard-coded value.
I 've put in the 2 blocks below for discussion. Block 1 take only 56 seconds to run to insert 16815 records while Block2 take ages to run.
Can someone tell me why?
Block 1:
========
declare
lv_sih_comp_cd varchar2(10):= '304400';
lv_vdr_code varchar2(50):= '912732';
begin
insert into taba
select * from taba@dlphtest h
where h.HIST_DT >= to_date('070903','ddmmyy') AND h.HIST_DT < TRUNC(SYSDATE)
and exists (select null
from dlph.model@dlphtest model
where model.model_code = h.model_code
and model.model_vdr_code = ls_vdr_code
and model.model_fact_code=ls_sih_comp_cd);
end;
Block 2:
========
declare
lv_sih_comp_cd varchar2(10):= '304400';
lv_vdr_code varchar2(50):= '912732';
begin
insert into taba
select * from taba@dlphtest h
where h.HIST_DT >= to_date('070903','ddmmyy') AND h.HIST_DT < TRUNC(SYSDATE)
and exists (select null
from dlph.model@dlphtest model
where model.model_code = h.model_code
and model.model_vdr_code = '912732'
and model.model_fact_code='304400');
end;
Regards
Louis

Correction:
Block 1 should be:
declare
lv_sih_comp_cd varchar2(10):= '304400';
lv_vdr_code varchar2(50):= '912732';
begin
insert into taba
select * from taba@dlphtest h
where h.HIST_DT >= to_date('070903','ddmmyy') AND h.HIST_DT < TRUNC(SYSDATE)
and exists (select null
from dlph.model@dlphtest model
where model.model_code = h.model_code
and model.model_vdr_code = lv_vdr_code
and model.model_fact_code=lv_sih_comp_cd);
end;
Sorry for the typo error.
Regards
Louis

Flash poor performance with vector art (.svg)

When using multiple pieces of vector art I've noticed that performance gets rather sloppy, so I created a simple test program that displays 100 copies of the same graphic and allows zooming. I used what I believe to be a fairly simple vector image (can see links below). However, fps drops massively when zooming in or out. I know zooming requires a lot of calculations, but I have an above average system (i5 2500k processor) that I would expect to handle such demands. Is there something I'm missing? or is vector art just not viable for my game (I would need lots of similar artwork on the screen at one time)
Picture of image - http://i.imgur.com/Cj50O.png
SVG file - http://pastebin.com/MjBLebFQ
Test Code: http://pastebin.com/Xmquy9Py

Oh wow, cache as bitmap seems to make quite a noticable improvement in performance. I didn't know that option was possible.
I will look into bitmaps, but I tried before and noticed the quality was poor when zooming. Lots of jagged edges. I tried using bitmapSmoothing but then my images were noticably blurry afterwards.
Thanks for the help again kglad. You are an absolute legend!

Dblink poor performance with varchar(4000) after upgrade 11g

Hi
Since a long time we connected from a 10g database via dblink to another 10g database to copy a simple table with four columns. Tablesize at about 500MB
column1 (varchar(100))
column2/3/4 (varchar(4000)).
After the upgrade of the source database to 11g the dblink performance is poor with the big varchar columns. If I copy (select column1 from ) only column1 then I get the data within minutes. If I want to copy the whole table (select column1, column2, column3, column4 from...) then the performance is poor. It didn't finish within days.
Does anyone know about dblink issues with 11g and big varchar columns?
Thank you very much

Use DBlink to pull data from table(s) using IMPDP:
#1 Create DBlink in the Target database
create database link sourceDB1_DBLINK connect to system identified by password10 using 'SourceDB1';
[update tnsnames.ora appropriately]
#2
select DIRECTORY_PATH from dba_directories where DIRECTORY_NAME=’DATA_PUMP_DIR’;
create DATA_PUMP_DIR directory if not exists
#3
impdp system/pwdxxx SCHEMAS=SCOTT NETWORK_LINK=ORCL10R2 JOB_NAME=scott_import LOGFILE=data_pump_dir:network_imp_scott.log
That's all

URxvt poor performance with Bitmap fonts

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