Hardware :: Comparative Tests For Very High-end PCs?
Jun 2, 2010
Fifteen years ago buying a new computer was easy, magazines provided comparative tests of PCs for one's budget. Now typical magazine specs are not high enough for my needs:
I need a PC that can duplicate a 5 gb file in less than 10 seconds.
Where do I find comparative tests for PCs at this very high end?
Notice that some tests in webcache will fail on freebsd when -O is turned on. This is due to some event reordering, which will disappear when -g is turned on. I tried to run the test individually one after another, but that is too time consuming, it prompts for permission after every test and thus runs many test & opens a lot of xgraph window. The tests I run so far individually, agreed with the reference output. Now I am wondering, should I report a bug about it, or should I hire a kid to run those failed 40 tests( which require hitting the ENTER key 1200 times,maybe ), or what else should I do.
i have a OpenSUSE 11.3 with Gnome desktop ( core i5 processor, 2 GB DDR3 RAM ) want to run memtest, plz advice me which prog is best for it and where to find documentation or videos.Moreover is there any tests for motherboard / processor
In C++ language, we can do the following compound tests, Code: std::string a, b, c, d; if ((a == "Yes" && b == "Yes" ) || (c == "Yes" && d == "Yes")) { ... } In bash scripts, how can we do the parenthesis around compound tests?
Code: if [ "$a" = "Yes" ] && [ "$b = "Yes" ] [ "$c" = "Yes" ] && [ "$d" = "Yes" ]; then ... fi
I have a USB sound card that works sometimes with Firefox and with the VLC media player, but in the middle of a Gnome session it drops out and the sound starts coming from the internal card. In the Gnome Sound Preferences USB Audio is still selected and the test sounds still come loud and clear from the USB card, but the applications are ignoring this and have switched to the internal card.
The Gnome Device Manager shows the UA-4fx card and under it "USB Audio ALSA playback" and "USB UA4FX ALSA Control Device" devices are listed. I want to make the USB card the default for all applications and have internal card take over only when the USB card is unplugged.
Ultimately my DB will run in VM2 and any DB requests coming in at 2055 of VM1 should be forwarded to port 2055 of VM2. Since I do not yet have a DB running I am trying to test with netcat.
I'm doing some tests and playing around with postfix in a test squeeze server. What I want to achieve is a postfix mail server using ports 465 and 587 with smtp authentication to send mails. I followed this howto: [URL].. and I'm using a php script with pear functions to test sending emails to a gmail test account of mine. This is the script:
<?php require_once "Mail.php"; $from = "Webmaster <webmaster@server>"; $to = "My Name <myaccount@gmail.com>"; $subject = "This is sent with pear as a test"; $body = "This is the body of the message";
Epson stylus d88 recognised by 10.04 no tests or maintenance available in local host and obviously not printing. It's like it's there but they cannot talk to each other
A friend has intalled Linux after a load of problems with windows. He very kindly installed my Edirol UA25 soundcard, and when i click 'test' on System-preferences-sound, it indeed plays a sound. The problem is that when I try to play anything from the internet on firefox, or any sounds in VLC, or any other application, it doesn't work. I believe I'm running Ubuntu Studio, version 8.04, but I am not sure. I have an Athlon 64 bit processor if that's relevant.
I have a debian system with the following version you can se bellow. My problem is that one one single core of 4 it's running 100% all the time and i cant seem to find out why. The load is also high(load average: 0.91, 0.75, 0.40) because of this. This keeps happening even after reboots. The system if freshly installed twice and the same problem occours as soon as it boots. Something called kworker is running and causing the load / CPU load, is that normal for a fresh install??
root@Cyberdyne:/# lsb_release -da No LSB modules are available. Distributor ID: Debian Description: Debian GNU/Linux 8.2 (jessie) Release: 8.2 Codename: jessie
In the system monitor I have a number of unknown processes from user root,-1 that keep popping up (see yellow highlight in image1). What are they?
As you may see zombie processes are also coming and going... among which dns-resolver, ifup, ifdown, ifdown-route, netconfig, nis, ntp-config, udved, grep, touch.... Is that normal??
The system load view in the monitor indicates 2 CPUs with different loads (see image2) when I have only one intelP4. What is this?
At the same time the output of command top seems more regular, except for the high cpu load, although I wouldn't be able to say what every processes is meant for.(image3)
Has anyone an explanation? Is it normal that most of these zombie processes seem network related?
2. Virus report from external server
I usually connect to a server via VPN (to access electronic journals) but recently the access has been denied to me because "my connection is infected with the worm Conficker". I know it is very unlikely that a linux pc catches a virus.. so I am puzzeld... I have a dual boot with Windows (probably infected in some ways) but haven't used it for at least a year..
I am using centos 5, Kernel 2.6.18-53.el5. I am using 2 quad core processor with 4gb of ram
I am trying to figure out the significance of %CPU in the ps command.
My astreisk process %CPU is very high at the moment, at 115. I want to know if it is a cause for concern? If I do a top then the load of the box is very low.
Code: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND root 2872 115 1.4 628664 58372 ? Sl 14:56 190:30 /usr/sbin/asterisk -f -vvvg -c
i have a problem here whereby some 20 over servers in my network is having regular Offset values. The configured threshold is 55, but whenever it exceeds 55, i have alerts coming in. My questions are;
1)how do i find out what is causing the Offset value to be high?
2)i have workaround in mind, that is to create a cronjob to restart the ntp daily, or hourly - is this workaround an acceptable practice?
My main concern is to find out what is causing the frequent offset spike/increase. real example from my servers:
my server normally has low load of 0.80 now it is 4.0 'top' shows that programs are not using high cpu, but %wa is very high (80-90%). it has been like this for hours now.how can i find out which program has caused this?
I have a dell latitude with intel i7 nvidia NVS 3100M and screen 1920x1080 resolution, using KDE 4.4 stable suse, well with high resolution monitor I found some problem usng kde:
1- I can change the font dimension by system settings but if I bigger the font the dimension of Kmunu doesn't change so the result is big font in small container, ugly and difficult to use
2- I can change the font dimensions in KDM splashscreen but the window where username and password is shown doesn't change, result is big unreadeable font in a small case
3- I cannot change the tabs and theyr font dimensions in chromium and firefox, result very small tabs
4- Icons in system tray and Kmenu and other icons remains always small even if I bigger the panel
I just upgraded KDE on my openSuSE 11.2 installation. I have never had any problems doing this in the past, but this time, when I rebooted, I noticed that after a few seconds of idle time, my CPU usage goes sky high. I ran top in a console and noticed the culprit was xorg. I am using an NVIDIA card on an AMD64 3200+ with 1 gig of memory. KDE version is currently 4.5.85. Like I said, I didn't have this problem until the last update. Any ideas as to what could be causing this?
I'm using OpenSuse 11.4, and I was wondering if anyone else has noticed consistent high CPU utilization with banshee? By high CPU use I mean, when the application is running (whether it's idle, playing music, or scanning) CPU use on my machine is almost consistently at 100% (one core pegged).
Scanning my music library took hours ... like 3-4 hours to scan 9500 songs, and banshee was the only application running on my machine.
Rhythymbox doesn't suffer the same fate, scanning the same library took 5 minutes and CPU busy is less than 2% when it's running or playing music.
I'm running banshee 1.9.3, and I'd rather use it vs Rhythmbox.
I'm running desktop machine with with a core2 duo E6400 with 2GB RAM. I have completed a fresh install of Ubuntu 9.10 (fully updated). I have 10GB root, 2GB swap, 10GB home and 80GB data parititons.
I log in to main administrator account (first boot), create a new user (desktop) account and then use the switch user to log into the desktop account (so logged in to two accounts at the same time).
Whilst logged into the desktop account the CPU usage as seen in system monitor shows the two CPU's alternating at around 100% and the system slows down greatly.
Ubuntu 9.04 64-bit I just checked my system monitor and it looks like my memory is at a constant 900 MB's out of 4 gigs of ram. This seems high for only having firefox open.
I have a notebook with AMD Athlon 64 QL-62 2 cores CPU. Normally the temperature is 50-52 Celsius in idle but with Ubuntu 10.04 beta 2 idle temp is 60 Celsius. /proc/cpuinfo shows both cores on 1GHz which is good but still temp is higher than usual. I tried to find solution using Google but I didn't find anything.
If I install Linux Mint 8 or Open Suse , temperature is 48 as windows mostly.If I install any other distro, temperature goes to 80-85 and fan is always On.Ive a laptop dell just bought it, dell studio 15, 4ghz ram dual core etc, a monster for linux but ive this problem, kinda annoying when you wanna have something silent and that doesnt become a furnace.
I have recently upgraded from Kubuntu 9.10 to 10.04. I am having trouble with CPU usage by the X server. When running KDE programs (for example Kontact and Amarok) my computer is becoming very sluggish. This seems to be because X is using 90-100% of the CPU constantly when there are any changes to the application (any sort of redraw, even the mouse moving across the screen). I don't experience this with other applications (I am currently writing this from Chromium with no issues at all). Below is all the relevant information I can think to include.
INSTALL PROCESS: Fresh install from Ubuntu 10.04 LiveCD. My /home direrctory is on a separate partition so that has remained unchanged from 9.10. After installing Ubuntu, I installed the kubuntu-desktop package to install kdm and the KDE desktop.
The only real change from my last install is that /var is now also a separate partition (in a bid to save my MySQL data should I have to reinstall again) but it is on the same hard drive as my root partition and so shouldn't be causing any performance issues.
MY X SETUP: Three screen setup using onboard and PCI graphics cards. This worked perfectly before and, after reconfiguring X using nvidia-xconfig works almost as well again. Except that one of my monitors autodetects at 1280x1024 where before it was a higher (and widescreen) resolution.
The issue only presents itself when KDE application screens are visible and disappears when they are hidden (either minimised or closed) As far as Ican tell it could be an X, Qt or KDE issue. But I am not sure what versions of these will have been changed in the upgrade.
My problem seems to be very simple, it's high memory usage. I occasionally will use movie player to watch a few shows and I use firefox as well. My memory usage starts out real small about 500 mb but after using firefox lightly and movie player it jumps to almost 2 gigs and this is after they've been closed what gives? I've attached an image so you can see what I'm talking about.
I don't understand why I have a 800MB usage at startup. I didn't add any programs to start at startup. I do though have 10 primary partitions that are auto mounted at startup but it shouldn't use up so much, I have 2GB total RAM.
At startup nautilus uses ~400MB of virtual memory in the "system monitor"
Also which is RAM and which is SWAP in resources in system monitor: Virtual Memory && Memory?
-i figure vm is ram but thats not possible sometimes...it exceeds 2GB
The mouse sensitivity in Ubuntu is a little too high, and no matter how I set the mouse settings its either too sensitive or too slow...or too fast. I have tried many times to find the correct mouse settings adjusting both acceleration and sensitivity but nothing seems to be good. I've tried both my Microsoft mouse and Logitech MX Performance mouse and the same problem is apparent on both. Is there a bug with Ubuntu's mouse settings or something (I'm sure I heard about it some time ago - that the sensitivity settings aren't working exactly as they should be?), and is there any way around it? (or at least, be able to set good settings some how).
I'm running 10.10, but this seems to be an ongoing problem. While every other OS on the planet seems to be able to high level format LS-120 super floppies in their IDE drive, Linux can't. DR DOS can. OS/2 can. Windows 98 forward can.
We aren't talking low level format here. We are talking "quick" format where a new FAT and label are written to the media along with the high level markings/surface scan.
I can load a disk, copy to it, delete from it, but cannot perform a high level format.
I play RuneScape most of the time i'm on the computer and i always keep an eye on the performance. Yesterday and the days before, everything was going good, cpu usage it was causing was between 30 and 60%, now it wont go below 70%. It's always 70-99% for some reason :s i have set settings for graphics to OpenGL (they were like that before too with no problem) and it started causing high cpu usage. If i set it to Safe Mode in graphics settings it gets 100%, I never tweaked the drivers, i have a NVIDIA GeForce 9600 GT, i have the opengl thingies installed along with my nvidia driver. Ubuntu 10.10 32bit.