# Logstash consuming a lot of CPU? **URL:** \ **Category:** Logstash\ **Created:** [August 5, 2016, 4:36pm UTC](https://discuss.elastic.co/t/logstash-consuming-a-lot-of-cpu/57372 "2016-08-05T16:36:19Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![niraj\_kumar](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/niraj_kumar/32/4130_2.png) [@niraj\_kumar](https://discuss.elastic.co/u/niraj_kumar)\ **Post date:** [August 5, 2016, 4:36pm UTC](https://discuss.elastic.co/t/logstash-consuming-a-lot-of-cpu/57372/1 "2016-08-05T16:36:19Z")
We are using logstash version 1.5.6 with s3 input & elasticsearch output plugin been used. The CPU is spiking up to 40%. Is this normal for logstash? `top - 16:34:09 up 16:27, 1 user, load average: 2.66, 2.41, 3.08 Tasks: 96 total, 6 running, 90 sleeping, 0 stopped, 0 zombie Cpu(s): 34.9%us, 9.2%sy, 17.9%ni, 37.9%id, 0.0%wa, 0.0%hi, 0.2%si, 0.0%st Mem: 3856484k total, 3578792k used, 277692k free, 150556k buffers Swap: 0k total, 0k used, 0k free, 2351368k cached PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 29138 logstash 39 19 1890m 241m 7124 S 37 6.4 284:05.48 java ` Can these be optimized? ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 6, 2017, 4:44am UTC](https://discuss.elastic.co/t/logstash-consuming-a-lot-of-cpu/57372/2 "2017-07-06T04:44:33Z")