On 6/4/22 02:50, Matt Hogstrom wrote:
Just finished watching this … best overview of Z in general
Agreed. I subscribe to Linux Tech Tips as I build my own PCs. It's great
to see him in wide eyed admiration for a mainframe. The insane amount of
redundancy and I/O bandwidth is very different to building out a gaming
rig.
I’ve ever seen and it makes an x86 infrastructure seem parochial.
Very different design goals and budgets. A z15 socket dissipates more
power then the entire TDP of an x86 core. A typical x86 1U rack uses
lots of less powerful cores as opposed to z which has high frequency
cores and (used to have) enormous amounts of L4 cache which use a lot
of power. Interesting new cache architecture sharing L2 with eviction
strategies for sharing. And each core still has a whopping 32MB. IBM
seems to have gone back to it's roots of top class R&D.
Matt Hogstrom
[email protected]
“It may be cognitive, but, it ain’t intuitive."
— Hogstrom
On Apr 5, 2022, at 2:45 PM, Lionel B. Dyck <[email protected]> wrote:
This is pretty cool
https://www.youtube.com/watch?v=ZDtaanCENbc
enjoy
Lionel B. Dyck <><
Website: https://www.lbdsoftware.com
Github: https://github.com/lbdyck
"Worry more about your character than your reputation. Character is what you
are, reputation merely what others think you are." - - - John Wooden
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
----------------------------------------------------------------------
For IBM-MAIN subscribe / signoff / archive access instructions,
send email to [email protected] with the message: INFO IBM-MAIN
