High swap usage in varnish 5.2.1

[Hardik Prajapati]

Hi Team,

Please find specs for systems on which varnish 5.2.1 is running.

RAM - 96GB
Disk -  30TB

Param setting,
--------------------
thread_pool_max            15000 [threads]

thread_pool_min            5000 [threads]

Problem is high (almost 100%) swap usage. Can you please suggest
correct thread value ?


#]grep Vm /proc/20676/status

VmPeak: 13334288076 kB

VmSize: 13334152500 kB

VmLck:       876 kB

VmPin:         0 kB

VmHWM:  77463128 kB

VmRSS:  67573800 kB

VmData: 65535344 kB

VmStk:       132 kB

VmExe:      1076 kB

VmLib:    146172 kB

VmPTE:    714076 kB

VmSwap:  2024936 kB


Thank you
Hardik