2017 Efficiency Speed Storage 
Brendan Gregg
NOVEMBER 29, 2017
Paravirtualization**: The hypervisor provides efficient hypercalls, and the guest OS uses drivers and kernel modifications to call these hypercalls. Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. But not all workloads: some are network bound (proxies) and storage bound (databases). ## 5.
Brendan Gregg
FEBRUARY 28, 2023
## References I've reproduced the references from my SREcon22 keynote below, so you can click on links: - [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] Jul 2008 - [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] 2010 - [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?
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Brendan Gregg
NOVEMBER 28, 2017
Paravirtualization**: The hypervisor provides efficient hypercalls, and the guest OS uses drivers and kernel modifications to call these hypercalls. Virtualized in Hardware**: Hardware support for virtualization, and near bare-metal speeds. But not all workloads: some are network bound (proxies) and storage bound (databases). ## 5.
Brendan Gregg
FEBRUARY 28, 2023
References I've reproduced the references from my SREcon22 keynote below, so you can click on links: [Gregg 08] Brendan Gregg, “ZFS L2ARC,” [link] , Jul 2008 [Gregg 10] Brendan Gregg, “Visualizations for Performance Analysis (and More),” [link] , 2010 [Greenberg 11] Marc Greenberg, “DDR4: Double the speed, double the latency?
Percona
AUGUST 5, 2023
This blog was originally published in July 2017 and was updated in August 2023. Otherwise, the storage engine does a scatter-gather and queries ALL partitions in a UNION that is not concurrent. Each partition holds data that falls within a specific range, optimizing data handling and query speed. So, What is MySQL Partitioning?
Percona
SEPTEMBER 1, 2023
This blog was originally published in October 2017 and was updated in September 2023. To address these challenges, architects must design robust and scalable MongoDB databases and adopt appropriate sharding strategies that can efficiently handle increasing workloads while ensuring continuous availability. What is sharding in MongoDB?
Brendan Gregg
SEPTEMBER 5, 2017
I wrote a page on it: [perf]. - **eBPF**: tracing features completed in 2016, this provides efficient programmatic tracing to existing kernel frameworks. Both Xen and KVM have had many performance and security improvements, and workloads can now be tuned to run at almost bare metal speeds (say, a 3% loss or less).
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