[NEWS] Linux 6.2 brings new qspinlock to bolster large system scalability

Started by tle, December 19, 2022, 10:10:42 PM

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tle

QuoteUp to now IBM Power processors on Linux have relied on the generic queued spinlock "qspinlock" implementation within the kernel but that has been found to cause latency and starvation issues on large IBM POWER10 servers

Souce: https://www.phoronix.com/news/IBM-Power-Linux-6.2


I don't have enough knowledge to tell if it would benefit the POWER9
Faithful Linux enthusiast

My Raptor Blackbird

vikings.thum

Quote[..]testing on upwards of 16 sockets with 1,920 CPU threads[..]

Probably not, we only have two sockets. I also don't believe that 16-socket machines are over-the-counter computers.
I thought these days most companies run their stuff on virtualized commodity hardware #strengthinnumbers.