I have been exploring and people tell me its .tgz or something I think it could be .bz2. If you think you know what on average compresses files the best just post. I have a relatively fast computer.(So compression speed is not an issue.) Ratios on file compression are a good sign of how good some file compression formats are. I have heard bz2 gets on average 3 to 1. I have been getting 2 to 1.
View 8 RepliesI read the man pages of batch and it says that commands or scripts scheduled using the batch command will only execute when the load average goes below 0.8. As a newbie I hardy understand what it means. Does it mean that the system resources are busy?Ans since I want to see the o/p of the commands I have set using batch, is there any way i can bring the sys load average below 0.8?
View 3 Replies View RelatedI was struggling to find the information so I thought it would be easier to ask here. What does the load average as reported by top mean ? To me those are 3 mysterious values, which most likely refer to some average CPU usage and this is all I know about it (not sure if it's true).What is the maximum value for this parameter (I guess the minimum is 0.00) and what does it mean ?
View 5 Replies View RelatedI am a long supporter of Ubuntu and faithfully been updating every release from 8.04 till 10.10 ...I use an old Laptop with 512 MB RAM.I was not able to run the default Unity and I was dropped to GNOME .. This is the first time I am seeing a difference in Ubuntu trying to cater only to the more modern computers,.. Is the original spec of 384 MB RAM in previous versions no longer hold good?
I have an NVIDIA Card but I guess that is not enough..Any idea what is the problem in my config:Dell Inspiron Centrino Proc (1.4Ghz) , 512 MB DDR 1 , Nvidia.
How to get the load average for each CPU core in multi core(eg:duel core machine) processor environment. I tried using,
Code:
1. cat /proc/loadavg
2. uptime
3. top
But all of those commands gives the load average for whole system but not particular CPU core. Are there a way to take the load average for CPU core(Or any mechanism that can be done programmatic manner).
How to reduce the load average? I have two linux machines.. now my problem is that both the machines having same configuration and same processes are running in those two machines... But in one machine the load average is more than 3 and in other it is 0.5(when i am using top command).For this load average one machine(where load average is more) is slow when i am running application on it..
View 5 Replies View RelatedI wrote a script to extract and get the the name of *.gz in a foler . Since running that script every 10 minutes, load average on my server increases more than 10.I checked with 'top' and it showed many D process.
View 2 Replies View RelatedThe load average is almost 1.06, but cpu is not 100% utilized... I am just wondering why load average is 1.06 in that case still ? (well i monitored cpu for long time, it never exceeded above 40%)can anyone explain the reason behind it ? Also is the system over utilized in this case ?
View 3 Replies View RelatedI am having Red Hat LINUX 5 Enterprise Server and facing problem regarding very very high server load (load average is going high up to 60-70)due to which server is getting hang.
View 7 Replies View RelatedWith array in php. All I was having the following columns:
Code:
Now Like the Above there were more variables defined through script:
Code:
Now what the above code is doing is calculating average of above values from columns{1-?,4-?)..likewise
Say If I remove two Machine and calculate the avg.
I have two servers. One in production (lets call it the OLD ONE) and the other (lets call it the NEW ONE) in tests to replace the OLD ONE.This is the basic hardware of each one: (I can post more detailed info if you need, but beside the erros on dmesg, look at the the L2 cache of the NEW ONE )
Old one:
2 quad core processors that linux recognize as 8 x Intel(R) Xeon(R) CPU E5440 @ 2.83GHz - 32Kb L1 - 6Mb L2
48Gb RAM
New one:
8 quad core processor that linux recognize as 32 x AMD Opteron(tm) Processor 6136 @ 2.400Mhz (- 64Kb L1 - 512Kb L2
128Gb RAM
The scenario:We run a dataflex system on the old one, with average of 3000 users, with tops at 3300 users and sometimes less then 2000. In the old one, we have a load average from 2 to 6 with the 3000 users, depending on the type of application (sometimes we run reports to txt files that take more then 6 hours to complete and the load average can raise to 12). 85% of this conections are from remote links.
Dataflex is a language that derives from C that have their own sgbd (if we can call it that way), and have a limit of 2gb per table. This size we almost have on 5 tables and we use a dataflex feature to compress the data.
The problem:We are migrating (or trying to) the tables to oracle, so we bought new machines for the DB and the new one to replace the old one, becouse we think that could not handle the job with 2 oracles (load balance).In some tests we could see (or suposed) that the oracle database was not so fast with more then 1000 users (opening same table and doing the same task) and we decided to test the new one with the system that is in production right now, with dataflex tables, to ensure that the problem could be oracle.We change the HDs and IP. Started the system on the new one, and started to monitorate as the real users start their jobs. At 800 users the Load Average raised to 26 and with 1300 users we had more then 115 on Load Average. More users login in and the TOP become slow, pointing 400 of LA. From here we started to get some "Lock time out" erros and we had to change to the old one again, to prevent corruption on the tables. I'm analizing all report tools I know about performance and hardware and I cant see nothing. I saw some errors on dmesg, but I can say that is related to that problem.
installed squeeze, but top keeps reporting 0.00 most of the time, and def it's wrong cause we have another server same hardware but lenny, and its over 2.00 same load. what can i check or do to fix this? thx
Linux 2.6.32-5-amd64 #1 SMP Wed May 18 23:13:22 UTC 2011 x86_64 GNU/Linux
[Code]...
does anyone know how to calculate an average in a simple way with bash? I've got something like this:
Code:
$ cat results.txt | head -10 | tr " " " " | cut -f13
0.23929285124
0.404716908011
0.35113102608
[Code]....
and now I want to calculate the average of the resulting numbers. I know I could write a bash or awk or perl script and use that, but isn't there a more simple, elegant way? There is for example "sum" in the coreutils, but no "avg"..
Since upgrading from 9.10 to 10.04, my system is noticeably less responsive and exhibits halting behavior for at times 10s of seconds. There is nothing obvious in the various logs that I can find. The only objective indication I can find that demonstrates that something is seriously wrong is that my load average never drops below 0.5 and is often over 1.5, even at idle. In this situation, top/ps/whatever shows very few processes running (usually just top). This suggests to me that either the new kernel scheduler is horrible or that something new is resulting in blocking I/O or other uninterruptable sleeps.Typical top output:
Quote:
top - 12:18:01 up 1 day, 49 min, 5 users, load average: 1.42, 0.86, 0.71
Tasks: 262 total, 1 running, 261 sleeping, 0 stopped, 0 zombie
Cpu(s): 0.9%us, 0.8%sy, 0.0%ni, 97.6%id, 0.0%wa, 0.0%hi, 0.7%si, 0.0%st
[code]....
how to make the average queue length of HD. and therefore that each process be using? anyone can do this by prompt?
View 9 Replies View RelatedI need to knwo how to determine the bit rate for an average message in a within a LAN or LAN to Backbone.
View 3 Replies View RelatedI've these 2 UNIX timestamps values taken from the java method System.currentTimeMillis(). These 2 timestamps correspond to the start time and the end time of 2 process that ran. Here are the values:
Code:
starttime ---------------- endtime
1301005328042 ----------- 1301005352079
[code]...
I have High load on my server and my investigation shows nothing (so i believe that my investigations is wrong ), the load average in this moment is 10.13, 9.47, 8.24. , mentioning the below.
- The disk utilization (all the disks) is near 0, as the result of the IOSTAT
- There is no blocked processes (as a result of VMSTAT).
- I have two processors (dual core) , the maximum load average should be something around 4.
- The server always have above 8 load average in all times interval.
btw , my OS is RHEL AS release 4 (Nahant Update 7)Kernel :Linux 2.6.9-78.ELhugemem #1 SMP i686 i686 i386 GNU/Linux
Anyone know what means the values of Load Average?
load average: 0.00, 0.00, 0.04
load average: 17.50, 13.44, 12.70
Sometime is low and many times is high.
I don't know what is going on with one of my servers.
It is sitting with a load average of 10.09 10.08 10.02
However If I look at top I see the server between 95% and 99% idle!
Is it possible that my server is running some hidden processes or something?
How I can investigate the cause of this.
I have high load average on the servers with no identified reason (From my point of view)
View 2 Replies View RelatedIs it possible with vixie cron to limit cron's activities by the current load average? Basically I'm looking for the same functionality that's in fcron, but I'm restricted to use the vixie cron with CentOS 5.3.If not, does anyone have any recommendations on limiting the impact that cron has when it runs 20-30 user-specified crontabs at once?
View 4 Replies View RelatedI'm trying to write a python script that will calculate my test scores from a text file named "exams."
Sample input would be:
Output will look like:
I have the following code:
Code:
My intent is to sum the values found in L and divide by len(L).
I think my issue is that when I split the values, I get a string array (ex. ['85', '90'] ), which makes it hard to do calculations.
I have a text file with 4 columns and 18 rows. All are integers. I wish to find the average of first 12 numbers in the third column using 'awk'.
View 8 Replies View RelatedI have a file which has several entries with
# comment 1
1245
# comment 2
5667
# comment 3
456456
how can I read the file, sum the numbers ( "avoid" the #lines) and then get the average of the numbers?
I do awk '{s+=$0} END {print s}' /tmp/file.txt. and this give me the sum correctly, but how can I get also the average ?
I recently upgraded from Fedora 11 to Fedora 14 on my Dell Latitude E6400 notebook PC. It's a Dual core processor, as seen in the uname provided below:
uname -a:
Linux COMPUTERNAME 2.6.35.6-48.fc14.i686 #1 SMP Fri Oct 22 15:34:36 UTC 2010 i686 i686 i386 GNU/Linux
redhat-release:
Fedora release 14 (Laughlin)
Since the upgrade, I've noticed some unexplainable behavior: The load average is consistently 0.5 - 1.75 when my PC is completely idle (99% according to top). No processes are in the D (I/O) state, and I have no Zombie processes. This happens on a fresh boot, every time. It gets worse and less worse, and bounces from unusable (cursor stops moving as I type in the terminal, to actually losing keystrokes at times). I'm wondering if anybody else is experiencing similar issues, or knows of a (the) kernel bug which is causing this behavior? Actively researching the issue. I've come across the following: Tens of wakes per second in "[kernel scheduler] Load balancing tick" on Core 2 Duo even with only 1 core enabled
[Code]....
Upgraded from 9.10 to 10.04 Thursday night. My internet was working perfectly under 9.10, but when I turn my comp on friday morning, my internet speed has been crippled to almost a halt.
In short, I get about 25 kb/s average speed, when it doesn't completely drop me. Under 9.10, I had 250+ kb/s. Why is this? I figure it has to be a bug, but is there any way to fix it? It's rendering my ubuntu install completely useless. I'm lucky I got my windows partition fixed, or else my laptop would be more or less a paperweight for a while. This is on the same laptop by the way, same internet connection.
A server of mine previously running ubuntu 9.10 used to be between 0.01 and 0.10 load average during the normal load of users using various server programs on it (mostly apache with php scripts).
Now, after upgrading to 10.04 (which went smoothly for the most part), the load average is much greater under the same user workload, hovering between 0.1 and 0.3 under very light work and up to and over 1 regularly when more users are accessing the same scripts.
Are there any known issues that would cause greater usage of the same resources in lucid, or are there any ways I can trace what's causing the higher load? Downgrading or starting with a fresh install are last resorts, as there are a lot of customized options specifically set up for this server and I'd rather not go through backing them all up and restoring them after a complete wipe.
It's the fourth time now since Maverick that I had to cold reboot my system because it was totally unresponsive. The system monitor in my taskbar shows 100% on the background blue graph (I guess that's just one core then) and almost nothing on the other core. On the last freeze I managed to open 'sudo top' before it went totally unresponsive and saw that there was no high CPU usage at all, but a load average spiking above 24. Also the swap seemed to be full although my machine usually never uses swap. I was watching a movie with VLC this time, but I'm not sure if VLC ran the other times my OS froze. I made a snapshot with my cell phone: [URL]. How I can prevent a process from causing so much load?
View 6 Replies View RelatedI am having a problem with the server that I use to host my personal site. The load average quite often spikes to exceed 1.00 for the 1 and 5 minute intervals, and the 15 minute interval gets above .5. This occurs while the server is idle, serving very few or no requests and with the CPU 99% idle with <1% IOWAIT usage. I have checked top and vmstat, but neither one provides any useful info. Top continues to say the CPU is 99% idle, and vmstat says that there are 0 runnable and 0 blocking tasks. Occasionally, vmstat will say that there is 1 runnable task, but this doesn't even coincide with the load average spikes. I have already searched for other solutions to this problem, but everything I have seen says to use top and/or vmstat, but those aren't showing anything out of the ordinary. Can anyone recommend anything else I might do?
My server has a Pentium 4 HT 3gHz processor, 2GB RAM, and runs Kubuntu 10.10. (The reason it runs Kubuntu instead of Ubuntu Server is that it needs an X environment so that the Nvidia driver can initialize and put its graphics card into a power saving mode.)