[Rd] System slow down (PR#3668)

Marc Schwartz MSchwartz at medanalytics.com
Wed Aug 6 11:39:01 MEST 2003

In addition to Prof. Ripley's suggestion:

1. Specifically as it pertains to anti-virus software, if you are using
any, be sure that it is checking only executables and not "all" files.
The latter setting, under McAfee for example, can slow system
performance down notably. Presumably there is a similar setting under
Norton and others.

2. If you are using any type of firewall program (ie. ZoneAlarm),
consider un-installing it completely, re-booting and re-installing.
There have been problems noted with some of these programs after a time,
where system performance can slow.

3. If you recently installed any WinXP service pack updates and or
security updates, there are well known and MS acknowledged system slow
downs with some of them under certain circumstances. Please review the

The following is a rather rare scenario, but can also result in system
slow downs:



Marc Schwartz

On Wed, 2003-08-06 at 10:13, Prof Brian Ripley wrote:
> Don't submit *two* bug reports as a question.  That's not what R-bugs is 
> for, rather R-help.  And it is never necessary to send a report twice.
> The answer to your question is that no one else has reported a change, and 
> with XP Pro no one here has a problem.  I can suggest you look into your 
> antivirus software, as there is a known problem with XP auto-update and 
> most virus checking.
> On Wed, 6 Aug 2003 E3QJ at unb.ca wrote:
> > Full_Name: Jeff Benjamin
> > Version: 1.7.1
> > OS: XP Home Edition
> > Submission from: (NULL) (
> > 
> > 
> > Recently have been using R1.7.1 on a new laptop computer.  System and software
> > worked fine for at least two weeks.  Now the entire OS slows down to the point
> > where one would think it had frozen.  I feel there must be a compatibility issue
> > between R and XP Home (including auto updates / service packs) as these are the
> > only items I have changed recently.  Has anyone else had any similar problems
> > lately?

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