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Re: Does Lion Have a Memory Leak?

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On 2014-05-23, Charles H. Sampson <csampson@inetworld.net> wrote:
> Jolly Roger <jollyroger@pobox.com> wrote:
>
>> On 2014-05-22, Charles H. Sampson <csampson@inetworld.net> wrote:
>> > Jolly Roger <jollyroger@pobox.com> wrote:
>> >
>> >> On 2014-05-21, Charles H. Sampson <csampson@inetworld.net> wrote:
>> >> >      Does Lion have a memory leak? I have a one-year old MacBook Pro
>> >> > that came with Lion. It has three users and most of the time all of them
>> >> > are logged on. This is not an issue with Unix, which I used for years
>> >> > professionally, and it's not an issue with my old G4 that runs Tiger.
>> >> > (Yes, the G4 runs slowly but it's not affected by the number of users
>> >> > logged on. If a user is running a compute hog, that's another story.)
>> >> >
>> >> >      Every once in a while, at least once a week it seems, the MacBook
>> >> > runs glacially slow. The only fix that I've discovered so far is to log
>> >> > everybody off and restart. Then all is good, at least for a while.
>> >> 
>> >> It sounds like you're assuming it's memory-related. Have you actually
>> >> examined the machine while the sluggish condition is present to see
>> >> what's actually going on?
>> >
>> >      Yes. Activity Monitor shows no CPU hogs and the amount of disk and
>> > network activity seem quite reasonable.
>> 
>> Where's the evidence of a leak?
>
>      No direct evidence. Just a shot in the dark trying to come up with
> an explanation for the slowing down.

The key to solving the problem is knowing the cause, and to learn that
you need to examine the system while the condition is happening. For
instance, what messages are displayed in the console and system logs
when the condition is in play? If there were a memory leak, I would
expect one or more processes to show that they are using inordinate
amounts of memory in the activity monitor memory page.

-- 
E-mail sent to this address may be devoured by my ravenous SPAM filter.
I often ignore posts from Google. Use a real news client instead.

JR

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Thread

Does Lion Have a Memory Leak? csampson@inetworld.net (Charles H. Sampson) - 2014-05-20 23:13 -0700
  Re: Does Lion Have a Memory Leak? Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2014-05-21 00:07 -0700
    Re: Does Lion Have a Memory Leak? csampson@inetworld.net (Charles H. Sampson) - 2014-05-21 23:50 -0700
  Re: Does Lion Have a Memory Leak? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 15:38 +0000
    Re: Does Lion Have a Memory Leak? csampson@inetworld.net (Charles H. Sampson) - 2014-05-21 23:50 -0700
      Re: Does Lion Have a Memory Leak? Jolly Roger <jollyroger@pobox.com> - 2014-05-22 15:41 +0000
        Re: Does Lion Have a Memory Leak? csampson@inetworld.net (Charles H. Sampson) - 2014-05-23 06:56 -0700
          Re: Does Lion Have a Memory Leak? Jolly Roger <jollyroger@pobox.com> - 2014-05-23 16:14 +0000

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