# How can i run benchmark using only 1.5 KB objects **URL:** \ **Category:** SSD Benchmarks (using ACT)\ **Created:** [May 9, 2022, 4:02am UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412 "2022-05-09T04:02:15Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![\_Jin\_Park](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/_jin_park/32/1852_2.png) [@\_Jin\_Park](https://discuss.aerospike.com/u/_Jin_Park)\ **Post date:** [May 9, 2022, 4:02am UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412/1 "2022-05-09T04:02:15Z")
Hi. I installed ACT 6.4 in my server. I have 2 question related with benchmark config and result. 1. How can i run using only 1.5KB objects? Aerospike said used 1.5K blocks from ssd certification document. These devices were tested at the specified speed with a 67% read/33% write ratio of 1.5 KB objects over 24 hours. - [Certifying Flash Devices (SSDs) | Aerospike Documentation](https://docs.aerospike.com/server/operations/plan/ssd/ssd_certification) 2. How can get a speed(tps)? ---
**Author:** ![meher](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/meher/32/1644_2.png) [@meher](https://discuss.aerospike.com/u/meher)\ **Post date:** [May 9, 2022, 11:34pm UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412/2 "2022-05-09T23:34:44Z")
I haven’t looked at ACT in a while but I believe the act\_storage is what you want for validating an SSD for storing the record values (the typical use case) and the default object size for that is 1.5KiB. If the index is in memory (fairly typical) the SSD for the storage of the data is all you need. The act\_index is for the All Flash configuration, so that would be used to validate an SSD for storing the index. In such configuration the disk access is of 4KiB size and independent of the record size. Records always use 64 bytes in the index and for an All Flash configuration, one needs to have the sprigs fit in a single 4K block (64 records per sprig). The details on how to interpret the results should be on this github repo: > **[GitHub - aerospike/act: Aerospike Certification Tool](https://github.com/aerospike/act)** > > Aerospike Certification Tool. Contribute to aerospike/act development by creating an account on GitHub. Basically `./analysis/act_latency.py -l output.txt`. ---
**Author:** ![\_Jin\_Park](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/_jin_park/32/1852_2.png) [@\_Jin\_Park](https://discuss.aerospike.com/u/_Jin_Park)\ **Post date:** [May 10, 2022, 1:34am UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412/3 "2022-05-10T01:34:43Z")
Thanks for reply, Meher. I found anwser for my questions. 1. 67% read/33% write ratio of 1.5 KB objects over 24 hours. That test is default configuration. 2. speed(tps) - if i passed x100 test, that test’s speed is 300000 tps (200000read+100000write). ---
**Author:** ![sandersbud4](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/sandersbud4/32/1649_2.png) [@sandersbud4](https://discuss.aerospike.com/u/sandersbud4)\ **Post date:** [May 21, 2022, 10:42am UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412/4 "2022-05-21T10:42:54Z")
@_Jin_Park Thanks for sharing your findings. ---
**Author:** ![system](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.aerospike.com/system/32/2274_2.png) [@system](https://discuss.aerospike.com/u/system)\ **Post date:** [August 13, 2022, 10:43am UTC](https://discuss.aerospike.com/t/how-can-i-run-benchmark-using-only-1-5-kb-objects/9412/5 "2022-08-13T10:43:26Z")
This topic was automatically closed 84 days after the last reply. New replies are no longer allowed.