Daniel Jordan from our core kernel team wrote up a review of his ktask framework, which has been submitted for review to the Linux Kernel Mailing list. This...
Daniel Jordan from our core kernel team wrote up a review of his ktask framework, which has been submitted for review to the Linux Kernel Mailing list. This post has been edited to add a link to lstat.sh below. Lately I've been working on a project called ktask, which allows the Linux kernel to parallelize large tasks. Although these tasks always run in kernel context, they may be initiated directly in the kernel or indirectly through a system call from an application. In...
Daniel Jordan from our core kernel team wrote up a review of his ktask framework, which has been submitted for review to the Linux Kernel Mailing list. This post has been edited to add a link...
With the transition of enterprise workloads into the cloud, the number of Oracle workloads running on Linux continues to increase. Oracle has long invested in...
With the transition of enterprise workloads into the cloud, the number of Oracle workloads running on Linux continues to increase. Oracle has long invested in Linux (the first commercial database on Linux in 1998, the first cluster filesystem on Linux--OCFS2--a few years later), and with the continued shift towards cloud we want to ensure the best possible experience for customers running enterprise workloads on Linux. Our development effort focuses on performance, stability...
With the transition of enterprise workloads into the cloud, the number of Oracle workloads running on Linux continues to increase. Oracle has long invested in Linux (the first commercial database...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong. For the past year I have been working on a bunch of new features for theXFS...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong. For the past year I have been working on a bunch of new features for theXFS filesystem on Linux. Modern-day XFS is a direct descendant of theoriginal XFS code from SGI Irix that was donated long ago. The goalsare the same -- XFS is intended to behave consistently as it scales tolarge storage and many files. v4.8: Reverse Mapping Back in 2014, Dave Chinner prototyped a mechanism for storing...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong. For the past year I have been working on a bunch of new features for theXFS filesystem on Linux. Modern-day XFS is a...
Several Oracle Linux kernel developers will be speaking at LinuxCon Japan next week in Tokyo, from July 13th-15th.Feature Rich BTRFS is Getting Richer With...
Several Oracle Linux kernel developers will be speaking at LinuxCon Japan next week in Tokyo, from July 13th-15th.Feature Rich BTRFS is Getting Richer With Encryption - Anand JainIntroduction to Coccinelle and SmPL - Vaishali ThakkarLinux Kernel Security Update - James MorrisJames Morris will also participate in the kernel developer panel along with other senior community kernel developers.
Several Oracle Linux kernel developers will be speaking at LinuxCon Japan next week in Tokyo, from July 13th-15th.Feature Rich BTRFS is Getting Richer With Encryption - Anand JainIntroduction...
This is a posting by Oracle Linux Kernel Engineer, Dan Carpenter. In this, he provides an overview of Smatch, the C static analysis tool which he developed,...
This is a posting by Oracle Linux Kernel Engineer, Dan Carpenter. In this, he provides an overview of Smatch, the C static analysis tool which he developed, and which he uses to test the mainline Linux kernel code for security bugs. My job at Oracle is focused on finding security bugs in the Linuxkernel. My favorite type of bug is off by one bugs where the code says: if (x > ARRAY_SIZE(table))return -EINVAL; The problem is that > should be changed to >= it so it says: if (x...
This is a posting by Oracle Linux Kernel Engineer, Dan Carpenter. In this, he provides an overview of Smatch, the C static analysis tool which he developed, and which he uses to test the mainline...
This is a contributed post by Oracle mainline Linux kernel developer, Liu Bo, who recently presented at the 2015 China Linux Storage and File System (CLSF)...
This is a contributed post by Oracle mainline Linux kernel developer, Liu Bo, who recently presented at the 2015 China Linux Storage and File System (CLSF) Workshop. CLSF is an invite-only event for Linux kernel developers in China. This event was held on October 15th and 16th in Nanjing. Ceph Haomai Wang from XSKY introduced some basic concepts about Ceph, e.g. MDS, Monitor, andOSD. Ceph caches all meta-data information (cluster map)on monitor-nodes so clients could fetch...
This is a contributed post by Oracle mainline Linux kernel developer, Liu Bo, who recently presented at the 2015 China Linux Storage and File System (CLSF) Workshop. CLSF is an invite-only event for...
The following is a write-up by Oracle Mainline Linux Kernel Engineer, Mike Kravetz, on his recent upstream work on enhancing hugetlbfs support in the Linux...
The following is a write-up by Oracle Mainline Linux Kernel Engineer, Mike Kravetz, on his recent upstream work on enhancing hugetlbfs support in the Linux kernel. Introduction Linux huge page support has been present in the Linux kernel since 2003. Whenfirst introduced, the only way to take advantage of huge pages was viahugetlbfs. This often involved modifications to application code andexplicit action by system administrators to set up and reserve pools ofhuge pages. As a...
The following is a write-up by Oracle Mainline Linux Kernel Engineer, Mike Kravetz, on his recent upstream work on enhancing hugetlbfs support in the Linux kernel. Introduction Linux huge page support...
Next week in Seattle is a big one for Linux, with LinuxCon North America on from 17-19 August, as well as a series of co-located events, including CloudOpen,...
Next week in Seattle is a big one for Linux, with LinuxCon North America on from 17-19 August, as well as a series of co-located events, including CloudOpen, the Linux Plumbers Conference, ContainerCon, the Xen Project Developer Summit, and the Linux Security Summit. There's a whole bunch more, including a 5km fun run at some point, for the truly enthusiastic. Several folks from the Oracle Mainline Linux Kernel team will be participating:Sowmini Varadhan will be giving two...
Next week in Seattle is a big one for Linux, with LinuxCon North America on from 17-19 August, as well as a series of co-located events, including CloudOpen, the Linux Plumbers...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong, providing some backround on his work on Linux FS Metadata Checksumming,...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong, providing some backround on his work on Linux FS Metadata Checksumming, which, after many years of work, will will be turned on by default in the upcoming e2fsprogs 1.43 and xfsprogs 3.2.3. One of the bigger problems facing filesystems today is the problem of onlineverification of the integrity of the metadata. Even though storage bandwidthhas increased considerably and (in some cases) seek...
The following is a write-up by Oracle mainline Linux kernel engineer, Darrick Wong, providing some backround on his work on Linux FS Metadata Checksumming, which, after many years of work, will will...
