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K2InformaticsGmbH / imem

Clustered in-memory database based on MNESIA with simple SQL layer
http://www.k2informatics.ch/
Apache License 2.0
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CPU utilization is high when snapshot script is running and takes 7 seconds in mgmt #253

Closed shamis closed 5 years ago

shamis commented 5 years ago

periodic snapshot of table by default happens every 10 seconds. CPU usage shoots up and also each of these cycle takes over 7 seconds.

On local machines this is lot higher.

image

2019-04-29 10:44:14.921 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 6.989392 2019-04-29 10:44:31.926 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 7.006396 2019-04-29 10:44:48.962 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 7.021399 2019-04-29 10:45:05.997 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 7.021398 2019-04-29 10:45:23.205 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 7.208436 2019-04-29 10:45:40.287 [info] <0.771.0>@imem_snap:handle_info:310 [IMEM] {imem_snap,310} !!!!!!! Time for snapshot is : 7.068408