On 11/11/2013 5:19 AM, Mark Zelden wrote:
On Sat, 9 Nov 2013 19:47:35 GMT, [email protected] <[email protected]> wrote:
I have been reading and following this thread sine PLO is not an instruction I
use every day.
It would be nice if someone would actually post some working code using a PLO
instruction, to illustrate how one would add an element to a queue and remove
an element from a queue.
Paul D'Angelo
I've not been paying that close of attention, but I'm more curious about what
people did
for these situations prior to PLO.
They used smart algorithms using the atomic instructions they had, like
RCU http://en.wikipedia.org/wiki/Read-copy-update. It's interesting that
I have never seen any use of the PLO instruction in the zLinux kernel code.
Paul McKenney, IBMs expert on these things, wrote a good article that
suggests that Hardware Transaction Memory may not be the panacea we all
expect it to be, and in some cases may actually increase CPU
http://paulmck.livejournal.com/31285.html.
Mark
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