Comments on: Performance of Various EBS Storage Types in AWS https://www.percona.com/blog/performance-of-various-ebs-storage-types-in-aws/ Wed, 13 Jul 2022 14:17:11 +0000 hourly 1 https://wordpress.org/?v=6.5.2 By: Tadhg Pearson https://www.percona.com/blog/performance-of-various-ebs-storage-types-in-aws/#comment-10973662 Wed, 13 Jul 2022 14:17:11 +0000 https://www.percona.com/blog/?p=77786#comment-10973662 This is super interesting. I understand these latency graphs as 95th percentile ms of read… what percentage of reads are represented by those outlying dots above the main bar? For example, for gp2 on a single thread, what percentage of all read latencies are above 25ms?

]]> By: Vadim Tkachenko https://www.percona.com/blog/performance-of-various-ebs-storage-types-in-aws/#comment-10973299 Mon, 23 Aug 2021 18:01:03 +0000 https://www.percona.com/blog/?p=77786#comment-10973299 on O_DIRECT mode with
–file-extra-flags=direct
each write is guaranteed to be completed, pretty much like we use in InnoDB

]]> By: Hugo https://www.percona.com/blog/performance-of-various-ebs-storage-types-in-aws/#comment-10973297 Mon, 23 Aug 2021 13:35:35 +0000 https://www.percona.com/blog/?p=77786#comment-10973297 Hello,

Why do you use file-fsync-freq=0 and not file-fsync-freq=1 ? Isn’t it better to have a fsync after each write (for a DB Workload) ?

]]> By: Jesper Krogh https://www.percona.com/blog/performance-of-various-ebs-storage-types-in-aws/#comment-10973295 Mon, 23 Aug 2021 00:15:41 +0000 https://www.percona.com/blog/?p=77786#comment-10973295 Hi Peter,

For gp3 did you leave the throughput at the default 125 MiB/s or did you increase it to 250 MiB/s to match that of gp2?

Thanks,
Jesper

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