LinuxQuestions.org
Help answer threads with 0 replies.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 03-01-2017, 08:45 AM   #16
lpwevers
Member
 
Registered: Apr 2005
Location: The Netherlands
Distribution: SuSE, CentOS
Posts: 170

Original Poster
Rep: Reputation: 20

Quote:
Originally Posted by sundialsvcs View Post
I suggest that you should simply and, promptly make the case to management that maximizing the amount of RAM in these systems (to the extent that the motherboards will support!) will have a direct and immediate business impact. Furthermore, "chips are cheap."

You should have a qualified engineer look at exactly how the memory-cards are now deployed in these machines and to construct a plan to optimize the amount of RAM that is available in the various systems with an efficient outlay of money. In any case, it won't be much money, and the bottom-line business impact is quite obviously there. Presumably, in order to prosecute your business, you need to "run those queries." Trying to do it without enough resources is: "penny-wise and pound-foolish." This case can very easily be made, and you can quote me on that.
Oh, trust, me, been there, done that. And then you know managers, business procedures, forms in triple, blah, blah, blah, loads of management crap. But you're right, told them again after this incident, so hopefully they'll listen this time. (It's now under management consideration).

I guess this is just one of those cases, where if they don't upgrade memory soon, I'll just end up saying something like, "told you so...." and then laugh in their face.
 
Old 03-03-2017, 06:08 AM   #17
chrism01
LQ Guru
 
Registered: Aug 2004
Location: Sydney
Distribution: Centos 7.7 (?), Centos 8.1
Posts: 17,873

Rep: Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600Reputation: 2600
1. make sure you emailed them and cc'd yourself. Unfortunately sometimes they come looking for a scapegoat.
Never been had like that, but you hear stories.
2. Old SysAdmin saying "If you can afford it, it's not powerful enough" ; aka over time, it's normal evolution to keep increasing the load on a system until sooner or later it over-loads
 
Old 03-03-2017, 06:35 AM   #18
Habitual
LQ Veteran
 
Registered: Jan 2011
Location: Abingdon, VA
Distribution: Catalina
Posts: 9,374
Blog Entries: 37

Rep: Reputation: Disabled
don't sms-speak please.

Quote:
Originally Posted by lpwevers View Post
I've managed to setup more advanced monitoring using f.i. collectl and we managed to collect the culprit. We managed to trace it down to a certain user who had scheduled a job in the system to generate some reports over the night. Needless to say his query was less then optimally written.
What's "f.i." please?

Last edited by Habitual; 03-03-2017 at 06:37 AM.
 
Old 03-03-2017, 07:56 AM   #19
lpwevers
Member
 
Registered: Apr 2005
Location: The Netherlands
Distribution: SuSE, CentOS
Posts: 170

Original Poster
Rep: Reputation: 20
Quote:
Originally Posted by Habitual View Post
What's "f.i." please?
For Instance.
(As in for example)
 
Old 03-06-2017, 04:18 PM   #20
lpwevers
Member
 
Registered: Apr 2005
Location: The Netherlands
Distribution: SuSE, CentOS
Posts: 170

Original Poster
Rep: Reputation: 20
Ah, just to let you guys know. I've gotten the new memory. From what I can tell now it looks promising. Fingers crossed.....
 
Old 03-06-2017, 05:46 PM   #21
sundialsvcs
LQ Guru
 
Registered: Feb 2004
Location: SE Tennessee, USA
Distribution: Gentoo, LFS
Posts: 9,235
Blog Entries: 4

Rep: Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263Reputation: 3263
"Yeah, I thought so."

Now, you might wish to consider doing some other things, such as using a batch workload manager. For example, could those reports or long running jobs be run in unattended mode, such that you could control the "mix" of work that is being performed at any one time?

Also, see if you can use facilities such as ulimit, as well as any configuration files provided by the software, to "dole out" the memory resource so that everyone gets their fair share and no process can monopolize it.

In one past life, I created a very simple set of commands and invited the users to use them, which they did. These commands used something like the time command to measure(!) the execution time and resource consumption of the programs, writing the data to a public disk file. Some very simple statistical analysis of this file, after a few weeks, enabled me to tell these users things that they never knew about their own software. I gently introduced the idea of the resource availability on the system and tools such as ulimit, promising them that if they used these things, they could achieve predictable completion times ... all the time. Which they did, and which they did!
 
1 members found this post helpful.
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
How to see the History of processes that has been completed/killed? premkumar.st Linux - Newbie 13 02-08-2013 08:09 AM
how to check which processes are in wait cpu cycle brgsousa Linux - Software 1 08-10-2010 02:35 PM
Shell script: How to wait on two processes at the same time dbrazeau Programming 16 03-18-2010 12:33 PM
Wait for one of two processes to complete in a shell script nonoitall Programming 11 06-10-2008 04:10 PM
dpkg-deb: wait for tar failed: No child processes snudel Linux - Software 16 04-27-2007 07:17 AM

LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie

All times are GMT -5. The time now is 04:43 AM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Open Source Consulting | Domain Registration