Single SSD zpool, ZfsOnLinux, System gets 'choppy' with high IO for interactive use - how to diagnose?

• bcc

  71 19,499 9.2 C

  BCC - Tools for BPF-based Linux IO analysis, networking, monitoring, and more

  

In the meantime I was diagnosing some more (zpool iostat -ylq 10, zpool iostat -yw 10, Running zfsslow from https://github.com/iovisor/bcc) and it looks likes a number of READS are taking a long time.

• ioztat

  19 138 0.0 Python

  ioztat is a storage load analysis tool for OpenZFS. It provides iostat-like statistics at an individual dataset/zvol level.

Have you considered using ioztat to try to isolate the problematic bits of the workload? If you go this route, it would help to carve your home directory (or wherever you're doing the most work that hits disk) into discrete datasets--eg make ~/Pictures, ~/Videos, ~/Documents their own datasets.

• InfluxDB

  www.influxdata.com featured

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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