Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win

x
?
Solved

High CPU load when copying to/from network with Bitlocker enabled

Posted on 2010-08-25
5
Medium Priority
?
1,194 Views
Last Modified: 2013-12-04
Hello Everyone

After I enabled BitLocker on my Dell E6400 laptop with SSD harddrive and Windows 7 64-bit installed, then I started getting high cpu load when I copy files to and from the network. Usually the high cpu load is only 1 out of 2 cores and its basicly 100% load on that core. Its most noticeable with larger files, the first 5 seconds usually goes full the speed, but then memory and cpu goes up and my computer gets really slow.

I understand that BitLocker needs to encrypt/decrypt data that is going in and out of the computer, but is my experience with BitLocker normal?
cpu-load.jpg
0
Comment
Question by:DDK_Stephan
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
  • 2
5 Comments
 
LVL 3

Expert Comment

by:firozmusthafa
ID: 33519455
perfectly normal, bitlocker is an industry standard protection, you have to pay for what you get(cpu power)
0
 

Author Comment

by:DDK_Stephan
ID: 33519616
Thank you for your comment, but what about the fact that BitLocker is only running on 1 core during encryption/decryption?
0
 
LVL 3

Expert Comment

by:firozmusthafa
ID: 33519680
that's because bitlocker service is not multithreaded while your processor is multithreader(2 cores, right?), It's completely normal, because the encryption algorithm used cannot be multithreaded
Single threaded apps tend to draw power from single core only namely core0(most probably)
hope that clears your doubt
0
 

Author Comment

by:DDK_Stephan
ID: 33519892
Indeed!! :-)
A last question: Would it be possible to somehow set the process priority for BitLocker on low? So my system wont go "bananas" when I do transfers from/to the network?
0
 
LVL 3

Accepted Solution

by:
firozmusthafa earned 2000 total points
ID: 33520090
ofcourse you can do it from taskmanager, go to processess and click on cpu usage header to sort in decreasing order to findout the bitlocker process, there you can right click and set cpu affinity(which core to use),cpu priority etc..
If you don't want to do it every time system starts, i suggest try ashampoo core tuner to set the priority of such processes to low permanently....
Hope that helps....
0

Featured Post

Important Lessons on Recovering from Petya

In their most recent webinar, Skyport Systems explores ways to isolate and protect critical databases to keep the core of your company safe from harm.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

In 2017, ransomware will become so virulent and widespread that if you aren’t a victim yourself, you will know someone who is.
The Windows functions GetTickCount and timeGetTime retrieve the number of milliseconds since the system was started. However, the value is stored in a DWORD, which means that it wraps around to zero every 49.7 days. This article shows how to solve t…
In this Micro Tutorial viewers will learn how to use Boot Corrector from Paragon Rescue Kit Free to identify and fix the boot problems of Windows 7/8/2012R2 etc. As an example is used Windows 2012R2 which lost its active partition flag (often happen…
The viewer will learn how to successfully download and install the SARDU utility on Windows 7, without downloading adware.
Suggested Courses

609 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question