Following is the data from varnishstat:
SMA.Transient.g_bytes 15.76K -2.19K . 18.53K
15.50K 15.24K
SMF.s0.g_bytes 673.26M 47.95K . 672.87M
669.89M 668.90M
On 07/02/18 6:51 pm, Guillaume Quintard wrote:
Amount of storage used is just the sum of all the g_bytes fields
--
Guillaume Quintard
On Feb 7, 2018 14:12, "Pinakee BIswas" <[email protected]
<mailto:[email protected]>> wrote:
Hi Guillaume,
Thanks for your response and details.
Please find my comments inline:
On 07/02/18 6:21 pm, Guillaume Quintard wrote:
Hi there,
So, varnish memory usage will mostly come from three directions:
- storage, include Transient, so check the g_bytes fields in
varnishstat. Passes and shortlived objects will use Transient, so
you can either reduce those, or limit the Transient storage
(unbounded by defaukt).
Checked the g_bytes for transient in varnishstat. It's in Kbs.
- thread workspaces, one thread typically uses one workspace, so
you can limit the number of threads, or reduce the workspace size
- memory fragmentation: jemalloc will fragment up to 25%, not
much you can do here.
And no, no way to modify the mmap without restarting varnish.
May I ask how much data you are caching?
Could you please let me know how to figure out the amount of data
cached?
--
Guillaume Quintard
On Wed, Feb 7, 2018 at 1:34 PM, Pinakee BIswas
<[email protected] <mailto:[email protected]>> wrote:
Hi,
We have been using varnish since more than a year for our
ecommerce site.
Current version is 4.1.8.
OS is Linux. RAM is 8GB.
I am observing that the varnish memory usage is increasing
(right now 7%) and so is resident memory usage increasing.
The storage being used is file:
-s file,/tmp/varnish/,${storage}
I am not sure about the reason for the increase in varnish
memory usage:
* Is there a way to limit the varnish memory usage?
* How can I diagnose what is consuming memory?
* Most of our web pages have maximum 2 days of cache. Also,
some of the pages might be least visited.
* Is there a way to manipulate varnish mmap (when file
storage is used)?
Would appreciate any help on the above for efficient use of
varnish.
Thanks,
Pinakee
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