# Trying to undand MArvel stats and merge with SSD **URL:** \ **Category:** Elasticsearch\ **Created:** [June 6, 2014, 4:16pm UTC](https://discuss.elastic.co/t/trying-to-undand-marvel-stats-and-merge-with-ssd/17956 "2014-06-06T16:16:29Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![javadevmtl](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/javadevmtl/32/45613_2.png) [@javadevmtl](https://discuss.elastic.co/u/javadevmtl)\ **Post date:** [June 6, 2014, 4:16pm UTC](https://discuss.elastic.co/t/trying-to-undand-marvel-stats-and-merge-with-ssd/17956/1 "2014-06-06T16:16:29Z")
Running Elasticsearch 1.2.1 with Java 1.7\_55 on CentOs 6.5 The machine is a 32 core 96GB with standard spinning disk, but I also installed 1 Samsung Evo 840 for testing ES. The Evo is rated at 500MB/s though the Linux perf test reported about 300MB/s read and about 250MB/s write. The board is SataII which explains why it's 300MB/s max. Using Jmeter to send index requests to ES Executing about 6200 puts/s Marvel reports 2200 IOPS/ 20MB merges/s And iostat for the drive sdf 0.00 14214.00 0.00 2021.33 0.00 62.35 63.17 10.49 5.17 0.48 97.27 Also seeing on the console: stop throttling indexing: numMergesInFlight=4, maxNumMerges=5 Are these numbers good? -- You received this message because you are subscribed to the Google Groups "elasticsearch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [elasticsearch+unsubscribe@googlegroups.com](mailto:elasticsearch+unsubscribe@googlegroups.com). To view this discussion on the web visit [https://groups.google.com/d/msgid/elasticsearch/9c5f418d-99fe-48c4-b24e-4de18b9793d8%40googlegroups.com](https://groups.google.com/d/msgid/elasticsearch/9c5f418d-99fe-48c4-b24e-4de18b9793d8%40googlegroups.com). For more options, visit [https://groups.google.com/d/optout](https://groups.google.com/d/optout). ---
**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, 1:24am UTC](https://discuss.elastic.co/t/trying-to-undand-marvel-stats-and-merge-with-ssd/17956/2 "2017-07-06T01:24:09Z")