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From Zheng Lin Edwin Yeo <>
Subject Re: Memory Usage increases by a lot during and after optimization .
Date Wed, 06 Jan 2016 06:50:01 GMT
Hi Shawn,

Here is the new screenshot of the Memory tab of the Resource Monitor.

Yes, I found that the value under the "Working Set" column is much higher
than the others. Also, the value which I was previously looking at under
the Task Manager is under the Private Column here.
It says that I have about 14GB of available memory, but the "Free" number
is much lower, at 79MB.


On 6 January 2016 at 03:11, Shawn Heisey <> wrote:

> On 1/5/2016 9:59 AM, Zheng Lin Edwin Yeo wrote:
> > I have uploaded the screenshot here
> >
> >
> > Basically, Java(TM) Platform SE Library, which Solr is running on, is
> only
> > using about 22GB currently. However, the memory usage at the top says it
> is
> > using 73% now (which I think is already higher than the figures, given
> that
> > I have 64GB of RAM), and it could potentially go up to 100%, even though
> > the memory usage of Java(TM) Platform SE Library remains around 22GB, and
> > there is no other new task which uses alot of memory are running. The
> > figure is sorted according to the memory usage already.
> I would bet that the 73 percent refers to all memory allocated for *any*
> purpose, including the disk cache.
> The screenshot that you provided is not the best way to see everything
> that's happening in memory.  With the task manager open, click on the
> "Performance" tab, then click on "Open Resource Monitor" down at the
> bottom of the window.  This will open a whole new program.  Once that's
> open, click on the Memory tab, then click on the "Working Set" column
> header to sort by that column.  Increase the size of the window so that
> a large number of processes with the memory utilization can be seen,
> adjust the column widths so the information is clear, and make sure that
> the "Physical Memory" graph and its legend are fully visible.  Then grab
> a new screenshot.
> I believe that you will find the "Available" number is quite high, even
> though the "Free" number is very small ... and the difference will be
> similar to the "Cached" number.  If this is what you find, then
> everything is working exactly as it is supposed to be working.
> Thanks,
> Shawn

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