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PostgreSQL on S390x

cybertec-postgresql.com

11–20 of 32 posts

Re: PostgreSQL on S390x

#14

I'd be interested to see performance relative to Intel machines.

The fastest z series CPUs are just modern 7nm, 8core superscalars with built in AI coprocessors, a fancy large cache arch, virtualization, and a _base_ clock of 5ghz. I imagine they aren't the wizbang magic intel has, but I doubt they are slow.

https://en.m.wikipedia.org/wiki/IBM_Telum_(microprocessor)

https://arstechnica.com/gadgets/2021/09/ibms-telum-mainframe...

Re: PostgreSQL on S390x

#15
post #9

Earlier quoted context omitted.

Yeah, that all makes sense. Is it just big financial instututions that doing this? I can't go to IBM Cloud and kick off some S390x VMs, can I?

Open Source maintainers can ask for a) ssh access to s390x VM b) web console access where it's possible to create and remove VMs, for example 2 VMs, 8 GB RAM per VM With some distro like RHEL, SUSE, Ubuntu. One mainframe runs very many VMs. All access is monitored.

Is this the LinuxONE Community Cloud, or a different resource?

Re: PostgreSQL on S390x

#17

I'd be interested to see performance relative to Intel machines.

The fastest z series CPUs are just modern 7nm, 8core superscalars with built in AI coprocessors, a fancy large cache arch, virtualization, and a _base_ clock of 5ghz. I imagine they aren't the wizbang magic intel has, but I doubt they are slow. https://en.m.wikipedia.org/wiki/IBM_Telum_(microprocessor) https://arstechnica.com/gadgets/2021/09/ibms-telum-mainframe...

It's the size of the caches, memory bandwidth, and high core count, of some of these mainframes that make them interesting to me. It could be fun to play around.

I'm sure they eat electricity like crazy though.

Re: PostgreSQL on S390x

#18

SUSE Linux and RHEL have been available for s390x for a long time, including of course PostgreSQL.

This article is about PostgreSQL's own official binaries. Debian-provided packages have likewise existed for s390x for years (and continue for i386 too, which the article mentions they don't do anymore).
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