How to reduce performance of storage server?


HOME ยป Unix

I want the storage server to reduce performance after the licence
expired, instead of powering it off which seems too violent. I have
considered limiting net speed, however some customers may just use
Fibre Channel to communicate. As a storage server, it mainly accesses
data through disk, so how do I limit the disk I/O speed? Any other
better choice to reduce server performance aside from stopping cpu
cores?

The visual performance on my laptop has been greatly reduced since the
upgrade. I used to run on visual effects set to "normal" now
I'm even having lags when set at "none". It can't be the
change of theme because I am using human, as I always had. Here is the
result of "lspci":
class="bbcode_description">Code:
class="bbcode_code">00:00.0 Host bridge: Intel Corporation Mobile
945GM/PM/GMS, 943/940GML and 945GT Express Memory Controller Hub (rev
03)
00:02.0 VGA compatible controller: Intel Corporation Mobile
945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev
03)
00:02.1
Ubuntu
Does keeping a bunch of subscriptions affect server performance (even
if the threads are dead or closed?)
Ubuntu
Hi All,
I am a fairly new Ubuntu user, having had it for a year
now. It is pretty easy to use so I have not become 'advanced' in any
way really.
My computer is quite powerful. Despite having a sound
reducing shell, the computer still mimics the sound of an aeroplane
taking off. All the time.
I remember back in my Windows days, I
had a little performance gadget that allowed me to change the
performance capabilities of the computer depending on the task I was
doing. I have searched both my brains and the internet, but I cannot
for the life of me remember what this was called. I think it came with
the Asus motherboard, and had a little picture of a yellow
Ubuntu

I have two ways to do implement my code in my database application
i am using EF:
the first way:



var CountAll = (string.IsNullOrEmpty(DriversFilter) ? (from
d in ctx.Drivers where (d.Status ==
Base.Types.StatusPersonType.Active.ToString()) select d).Count() :
(from d in ctx.Drivers where (d.Status ==
Base.Types.StatusPersonType.Active.ToString() &&
d.Person.FirstName.Trim().ToUpper().Contains(DriversFilter.Trim().ToUpper())

||
d.Person.LastName.Trim().ToUpper().Contains(DriversFilter.Trim().ToUpper()))
select d).Count());


and the second way:



var CountAll = (from d in ctx.Drivers where (d.Status ==
Base.Types.StatusPersonType.Active.ToString() &&
d.Person.FirstName.Trim().ToUpper().Contains(DriversFilter.Trim().ToUpper())

||
d.Person.LastName.Trim().ToUpper().Contains(DriversFilter.Trim().ToUpper()))
select d).Count());


what is the different between the two implementations from the side
of app performance.

Web Development

I have to execute an operation that launches a lot of Map/Reduce
(~400) but every Map/Reduce is on a different collection, so it can't
be any concurrent write.



To improve the performance of this operation I paralyzed it by
creating a thread on application side (I use the Java driver) for each
Map/Reduce (note that I don't use sharding mode).



But when I compared the results I ended up with some worst results
that with a sequential execution (mono-thread).
To be more precise : 341 sec for sequential execution, 904 for a
distributed one.
So instead of getting better execution time, it's three time
longer.



Someone knows why mongoDB don't like parallelization of Map/Reduce
processes ?



I found an article about it ( href="http://www.quora.com/MongoDB/Can-two-MapReduce-jobs-run-concurrently-on-a-mongod-process"
rel="nofollow">link), but now that mongoDB use the V8 engine I
thought that should be ok.

Web Development

I want the storage server to reduce performance after the licence
expired, instead of powering it off which seems too violent. I have
considered limiting net speed, however some customers may just use
Fibre Channel to communicate. As a storage server, it mainly accesses
data through disk, so how do I limit the disk I/O speed? Any other
better choice to reduce server performance aside from stopping cpu
cores?

Unix

- Technology - Languages
+ Webmasters
+ Development
+ Development Tools
+ Internet
+ Mobile Programming
+ Linux
+ Unix
+ Apple
+ Ubuntu
+ Mobile & Tablets
+ Databases
+ Android
+ Network & Servers
+ Operating Systems
+ Coding
+ Design Software
+ Web Development
+ Game Development
+ Access
+ Excel
+ Web Design
+ Web Hosting
+ Web Site Reviews
+ Domain Name
+ Information Security
+ Software
+ Computers
+ Electronics
+ Hardware
+ Windows
+ PHP
+ ASP/ASP.Net
+ C/C++/C#
+ VB/VB.Net
+ JAVA
+ Javascript
+ Programming
Privacy Policy - Copyrights Notice - Feedback - Report Violation 2018 © BigHow