On 15/01/18 01:27 PM, Per Jessen wrote:
Anton Aylward wrote:
So I'm looking to migrate to another obscure file system. JFS.
My favourite. Except for test systems with ext4, everything here is JFS. Has been since ... forever. JFS v1.1 maybe.
I've used JFS extensively for many years (hmm over a decade) on IBM AIX machines.
The Linux variant of JFS is based on the JFS that was re-developed/-written for OS/2.
As I understand it, that code base was then fed back into the development of later model JFS for AIX and the Linux version is derived from that, concurrently with the Linux-for-AIX version.
My one question is about concurrency. [...] Is JFS multi-threaded?
What does that mean?
Well, by comparison, ReiserFS isn't. So if I have multiple ReiserFS partitions and am running, say, Thunderbird storing on one, and it wakes up occasion ad gets mail and stores it there, and I'm watching a movie that is on another partition that is also ReiserFS, while a compile of a tree is going on in the background and the source and destination are each on another partition and the binaries and libraries are on a third partition and they are all ReiserFS, then there's only one thread and they are blocking each other and overall performance sucks.
JFS is a mature filesystem that just works and works and works. IIRC, Backblaze (storage provider) used to swear by JFS.
I'm converting my "movies" and a few others and we'll see how it goes. -- A: Yes. > Q: Are you sure? >> A: Because it reverses the logical flow of conversation. >>> Q: Why is top posting frowned upon? -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org