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Notes on tuning postgres for cpu and memory benchmarking
Recently I wanted to measure the impact of NUMA placement and Hugepages on the performance of postgres running in a…
Tag: benchmarking
1 min read
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Running the ML-Perf Storage benchmark on Nutanix files.
Some technical notes on our submission to the benchmark committee. Background For the past few months engineers from Nutanix have…
1 min read
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Advanced X-Ray: reducing runtime by re-using VMs.
How to speed up your X-ray benchmark development cycle by re-using/re-cycling benchmark VMs and more importantly data-sets.
1 min read
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Microsoft diskspd. Part 2 How to bypass NTFS Cache.
How to ensure performance testing with diskspd is stressing the underlying storage devices, not the OS filesystem.
1 min read
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Microsoft diskspd. Part 1 Preparing to test.
How to install and setup diskspd before starting your first performance tests and avoiding wrong results due to null byte…
1 min read
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Why does my SSD not issue 1MB IO’s?
First things First Why do we tend to use 1MB IO sizes for throughput benchmarking? To achieve the maximum throughput…
1 min read
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HammerDB: Avoiding bottlenecks in client.
How to avoid bottlenecks in the client generator when measuring database performance with HammerDB
1 min read
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Paper: A Nine year study of filesystem and storage benchmarking
A 2007 paper, that still has lots to say on the subject of benchmarking storage and filesystems. Primarily aimed at…