Blog Posts

How To Install Prometheus and Grafana on Fedora Server

• Steve Scargall
• How to

[Updated] This article was updated on 03/13/2021 using Fedora Server 33, Prometheus v2.25.0, Grafana v7.4.3, and Node Exporter v1.1.2.

In this article, we will show how to install Prometheus and Grafana to collect and display system performance metrics.

Prometheus is an open source monitoring and alerting toolkit for bare metal systems, virtual machines, containers, and microservices. Grafana allows you to query, visualize, and alert on metrics using fully customizable dashboards .

How To Monitor Persistent Memory Performance on Linux using PCM, Prometheus, and Grafana

• Steve Scargall
• How to , Linux , Performance

In a previous article, I showed How To Install Prometheus and Grafana on Fedora Server . This article demonstrates how to use the open-source Process Counter Monitor (PCM) utility to collect DRAM and Intel® Optane™ Persistent Memory statistics, and visualize the data in Grafana.

Processor Counter Monitor is an application programming interface (API) and a set of tools based on the API to monitor performance and energy metrics of Intel® Core™, Xeon®, Atom™ and Xeon Phi™ processors. It can also show memory bandwidth for DRAM and Intel Optane Persistent Memory devices. PCM works on Linux, Windows, Mac OS X, FreeBSD and DragonFlyBSD operating systems.

Using ltrace to see what ipmctl and ndctl are doing

• How to , Linux , Performance , Troubleshooting

Occasionally, it is necessary to debug commands that are slow. Or you may simply be interested in learning how the tools work. While there are many strategies, here are some simple methods that show code flow and timing information.

To show a high-level view of where the time is being spent within libipmctl, use:

# ltrace -c -o ltrace_library_count.out -l '*ipmctl*' ipmctl show -memoryresources

To show a high-level view of where the time is being spent within libndctl, use:

How To Install and Boot Microsoft Hyper-V 2019 from Persistent Memory (or not)

• How to

In a previous post  I described how to install and boot Fedora Linux using only Persistent Memory, no SSDs are required. For this follow on post, I attempted to install Microsoft Windows Server 2022 onto the persistent memory.

TL;DR - I was able to select the PMem devices as the install disk, but when the installer begins to write data, we get an “Error code: 0xC0000005”. I haven’t found a solution to this problem (yet).

How To Install and Boot Microsoft Windows Server 2019 from Persistent Memory

• How to

In a previous post  I described how to install and boot Fedora Linux using only Persistent Memory, no SSDs are required. For this follow on post, I attempted to install Microsoft Windows Server 2019 and 2022 onto the persistent memory.

TL;DR - I was able to select the PMem devices as the install disk, but when the installer begins to write data, we get an “Error code: 0xC0000005”. I haven’t found a solution to this problem (yet).

How To Install and Boot Microsoft Windows Server 2022 from Persistent Memory (or not)

• How to

In a previous post  I described how to install and boot Fedora Linux using only Persistent Memory, no SSDs are required. For this follow on post, I attempted to install Microsoft Windows Server 2022 onto the persistent memory.

TL;DR - I was able to select the PMem devices as the install disk, but when the installer begins to write data, we get an “Error code: 0xC0000005”. I haven’t found a solution to this problem (yet).

How To Install and Boot Microsoft Hyper-V 2019 from Persistent Memory (or not)

• How to

In a previous post  I described how to install and boot Fedora Linux using only Persistent Memory, no SSDs are required. For this follow on post, I attempted to install Microsoft Windows Server 2022 onto the persistent memory.

TL;DR - I was able to select the PMem devices as the install disk, but when the installer begins to write data, we get an “Error code: 0xC0000005”. I haven’t found a solution to this problem (yet).

How To Install and Boot Microsoft Windows Server 2022 from Persistent Memory (or not)

• How to

In a previous post  I described how to install and boot Fedora Linux using only Persistent Memory, no SSDs are required. For this follow on post, I attempted to install Microsoft Windows Server 2022 onto the persistent memory.

TL;DR - I was able to select the PMem devices as the install disk, but when the installer begins to write data, we get an “Error code: 0xC0000005”. I haven’t found a solution to this problem (yet).