Performance degradation on my mac

Hello,
Based on some input in the discussion forums, I upgraded my 1.33 ghz ibook to 1.5GB of RAM and ensured that I have 10 GB free space (1/2 the hdd capacity). But I still find that when an application is trying to access something from the network (like html page or mail from imap server), the application gets stalled and I cannot switch to other apps.
How does one ensure good response time despite a slow internet connection? [The connection may not be slow, but just that the problem shows up when trying to fetch data]. Also, is there any virus which could have affected performance?
I suspect that downloading and adding security/system updates did make a difference to my mac's performance. Is there any data to rule out such a possibility?
thanks
-kamal

Hi Kamal, and a warm welcome to the forums!
Two things...
At this point I think you should get Applejack...
http://www.versiontracker.com/dyn/moreinfo/macosx/19596
After installing, Reboot holding down CMD+s, (+s), then when the DOS like prompt shows, type in...
applejack AUTO
Then let it do all 5 of it's things.
The 5 things it does are...
Correct any Disk problems.
Repair Permissions.
Clear out Cache Files.
Repair/check several plist files.
Dump the VM files for a fresh start.
At least if it doesn't fix it, it'll eliminate a few questions.
Try putting these numbers in Network>TCP/IP>DNS Servers for the Interface you're using...
208.67.222.222
208.67.220.220
Then Apply. These are safer/faster than most ISP's DNS numbers, and have been patched against DNS poisoning.
https://www.opendns.com/homenetwork/start/device/apple-osx-tiger
DNS Servers are a bit like Phone books where you look up a name and it gives you the phone number, in our case, you put in apple.com and it comes back with 17.251.200.70 behind the scenes.

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    The hatter wrote:
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  • Performance degradation after upgrading to yosemite

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  • Severe performance degradation after update/clean install of 10.10 Yosemite

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  • Severe performance degradation vs Mavericks

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  • Performance degradation with -g compiler option

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  • Performance degradation factor 1000 on failover???

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    See http://www.weblogic.com/docs51/cluster/setup.html#680201
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              Fleming Frese wrote:
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              > >
              > >Mike
              > >
              > >
              > >
              > >"Fleming Frese" <[email protected]> wrote:
              > >>
              > >>Hi,
              > >>
              > >>we are gaining first experience with WLS 5.1 EBF 8 clustering
              > >>on
              > >>NT4 SP 6 workstation.
              > >>We have two servers in the cluster, both on same machine
              > >>but with
              > >>different IP adresses (as it has to be)!
              > >>
              > >>In general it seems to work: we have a test client connecting
              > >>to
              > >>one of the servers and
              > >>uses a stateless test EJB which does nothing but writing
              > >>into weblogic.log.
              > >>
              > >>When this server fails, the other server resumes to work
              > >>the client
              > >>requests, BUT VERY VERY VERY SLOW!!!
              > >> - I should repeat VERY a thousand times, because a normal
              > >>client
              > >>request takes about 10-30 ms
              > >>and after failure/failover it takes 10-15 SECONDS!!!
              > >>
              > >>As naive as I am I want to know: IS THIS NORMAL?
              > >>
              > >>After the server is back, the performance is also back
              > >>to normal,
              > >>but we were expecting a much smaller
              > >>performance degradation.
              > >>
              > >>So I think we are doing something totally wrong!
              > >>Do we need some Network solution to make failover performance
              > >>better?
              > >>Or is there a chance to look closer at deployment descriptors
              > >>or
              > >>weblogic.system.executeThreadCount
              > >>or weblogic.system.percentSocketReaders settings?
              > >>
              > >>Thanks in advance for any help!
              > >>
              > >>Fleming
              > >>
              > >
              

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    - Dennis | Netherlands | Blog |
    Twitter

  • Performance Degradation with EJBs

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