Scalability and Performance Microconference at LPC 2018 This year at the Linux Plumbers Conference, Oracle Linux developer Daniel Jordan co-organized the...
Scalability and Performance Microconference at LPC 2018 This year at the Linux Plumbers Conference, Oracle Linux developer Daniel Jordan co-organized the performance and scalability microconference along with Pasha Tatashin from Microsoft and Ying Huang from Intel. The event had nine speakers, about half of whom were from Oracle, so this was a nice opportunity for our team to raise its concerns with the community. Daniel contributes this writeup on the challenges and...
Scalability and Performance Microconference at LPC 2018 This year at the Linux Plumbers Conference, Oracle Linux developer Daniel Jordan co-organized the performance and scalability...
Oracle Linux developer Subhra Mazumdar has been working on scalability improvements in the Linux scheduler. In this blog post, he talks about some of his latest...
Oracle Linux developer Subhra Mazumdar has been working on scalability improvements in the Linux scheduler. In this blog post, he talks about some of his latest work. At Oracle, we run big database workloads which are very susceptible to how the OS chooses to schedule threads. Spending too much time in the scheduler to select a CPU can translate to higher transaction latency (at a given throughput) or lower maximum achievable transaction throughput in TPC-C workloads. In this...
Oracle Linux developer Subhra Mazumdar has been working on scalability improvements in the Linux scheduler. In this blog post, he talks about some of his latest work. At Oracle, we run big database...
Oracle Linux developer Chuck Lever has been collaborating on an internet draft standard to bring transparent, end-to-end encryption for NFS (actually, all...
Oracle Linux developer Chuck Lever has been collaborating on an internet draft standard to bring transparent, end-to-end encryption for NFS (actually, all RPC-based protocols) in this new internet draft. As more Linux workloads traverse shared network infrastructure, we have seen an uptick in requests for encryption for network traffic. While there are many ways to do point-to-point traffic encryption, leading members of the Linux NFS community have proposed a different, and...
Oracle Linux developer Chuck Lever has been collaborating on an internet draft standard to bring transparent, end-to-end encryption for NFS (actually, all RPC-based protocols) in this new...
Making kernel tasks faster with ktask, an update Kernel developer Daniel Jordan got a nice writeup on lwn.net for his work on ktask. Daniel wrote a blog post...
Making kernel tasks faster with ktask, an update Kernel developer Daniel Jordan got a nice writeup on lwn.net for his work on ktask. Daniel wrote a blog post about ktask when the first version of this work was submitted to the Linux kernel community. Since then, the code has evolved to cover many additional dimensions in order to help it integrate with other systems. LWN.net subscribers can learn more in this recent writeup on the evolution of ktask. Ktask is a generic...
Making kernel tasks faster with ktask, an update Kernel developer Daniel Jordan got a nice writeup on lwn.net for his work on ktask. Daniel wrote a blog post about ktask when the first version of...
Shannon Nelson from the Oracle Linux Kernel Development team offers these tips and tricks to help make host network diagnostics easier. He also includes a...
Shannon Nelson from the Oracle Linux Kernel Development team offers these tips and tricks to help make host network diagnostics easier. He also includes a recommended playlist for accompanying your debugging! Ain't Misbehavin' (Dinah Washington) As with many debugging situations, digging into and resolving a network-based problem can seem like a lot of pure guess and magic. In the networking realm, not only do we have the host system's processes and configurations to...
Shannon Nelson from the Oracle Linux Kernel Development team offers these tips and tricks to help make host network diagnostics easier. He also includes a recommended playlist for accompanying...
Oracle Linux kernel developer Rahul Yadav kicked off a new project in LXC this year, called libresource. In this blog post, he talks about how to use...
Oracle Linux kernel developer Rahul Yadav kicked off a new project in LXC this year, called libresource. In this blog post, he talks about how to use libresource to effectively read system statistics in a stable manner. This project is hosted on github at https://github.com/lxc/libresource System resource information, like memory, network and device statistics, are crucial for system administrators to understand the inner workings of their systems, and are increasingly being...
Oracle Linux kernel developer Rahul Yadav kicked off a new project in LXC this year, called libresource. In this blog post, he talks about how to use libresource to effectively read system...
Oracle Linux kernel developer Nagarathnam Muthusamy contributed this blog post on the challenges of translating pids (process IDs) between different namespaces....
Oracle Linux kernel developer Nagarathnam Muthusamy contributed this blog post on the challenges of translating pids (process IDs) between different namespaces. This is a feature currently lacking from namespace support in the Linux kernel and is an important feature to enable multitenant use of the Oracle database via CDBs. Process ID(PID) namespace facility in Linux kernel has been an effective way of providing isolation between groups of processes which in turn has been...
Oracle Linux kernel developer Nagarathnam Muthusamy contributed this blog post on the challenges of translating pids (process IDs) between different namespaces. This is a feature currently lacking...
This blog post was written by kernel developers Jon Helman and Rob Gardner, whose code for the Oracle Data Analytics driver was accepted into the Linux source...
This blog post was written by kernel developers Jon Helman and Rob Gardner, whose code for the Oracle Data Analytics driver was accepted into the Linux source earlier this year. This is our ultimate installment in the kernel blog series on Linux enablement for SPARC chip features. Oracle DAX Support in Linux The Oracle Data Analytics Accelerator (DAX) is a coprocessor built into the SPARC M7, S7, and M8 chips, which can perform various operations on data streams. These...
This blog post was written by kernel developers Jon Helman and Rob Gardner, whose code for the Oracle Data Analytics driver was accepted into the Linux source earlier this year. This is our ultimate...
In this update, we share Btrfs functionality that helps make moving data between Btrfs volumes faster and more efficient. It's not new feature but it's an...
In this update, we share Btrfs functionality that helps make moving data between Btrfs volumes faster and more efficient. It's not new feature but it's an underutilized feature which showcases the unique capabilities of Btrfs as the native Linux copy-on-write filesystem. Btrfs send is introduced in Linux v3.5 and the amazing part is that it offers the ability of incremental update. Here I'll go through the command as a user and try to understand it as a btrfs developer. A...
In this update, we share Btrfs functionality that helps make moving data between Btrfs volumes faster and more efficient. It's not new feature but it's an underutilized feature which showcases...
