Multi-Threaded Integer Performance

Let's now take a look at multi-threaded workloads. Using all 18 cores causes the E5-2699 v3 to reduce the clock from 3.6 GHz to 2.8 GHz. Our POWER8 CPU on the other hand only has 10 cores.

LZMA Compression

The result is of course that the POWER8 cannot keep up with the 18-core Xeon, which runs most of the time at 2.8 GHz. But let's not forget that this is not the top-tier POWER8 CPU, which is the 12-core 3.5 GHz DCM inside the S824. All in all, this is solid performance as the POWER8 edges out a 14-core Xeon running at 2.8 GHz (E5-2695).

LZMA Decompression

With LZMA decompression on the other hand, despite having only 10 cores the POWER8 almost keeps up with the 18-core Xeon running at 2.8 GHz. This is remarkable as it has been a long time since we have this kind of performance from a CPU that cost less than half as much as Intel's most expensive Xeons ($4000+).

"Per Core" Integer Performance: 7-Zip Influence of the Compiler: Integer
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  • Mondozai - Friday, November 6, 2015 - link

    That's too bad. Over 90% of the world population exists outside of it and even if you look at the HPC market, the vast majority of that is, too.

    The world doesn't revolve around you. Get out of your bubble.
  • bji - Friday, November 6, 2015 - link

    He never claimed the world revolved around him, he just made a true statement that may be worth consideration. Your response is unnecessarily hostile and annoying.

    I would expand Jtaylor1986's statement: I believe that most if not all native English speaking populations use commas for thousands grouping in numbers. Since this site is written in English, it might be worthwhile to stick to conventions of native English speakers.

    It's possible that there are many more non-native English speakers reading this site who would prefer dots instead of commas, but I doubt it. Only the site maintainers would know though.
  • Jtaylor1986 - Friday, November 6, 2015 - link

    You read my mind :)
  • mapesdhs - Tuesday, November 10, 2015 - link

    Talking to numerous people around Europe about tech stuff, I can't think of any nation from which someone used the decimal point in their emails instead of a comma in this context. I'd assumed the comma was standard for thousands groupings. So which non-US countries do use the point instead? Anyone know?
  • lmcd - Friday, November 6, 2015 - link

    Cool on the rest of the world part, but the period vs comma as delimiters in the world numeric system ARE backward. In language (universal, or nearly), a comma is used to denote a pause or minor break, and a period is used to denote the end of a complete thought or section. Applied to numerics, and you end up with the American way of doing it.

    ^my take
  • JohanAnandtech - Saturday, November 7, 2015 - link

    Just for the record, this was not an attempt to nag the US people. Just the mighty force of habit.
  • ZeDestructor - Saturday, November 7, 2015 - link

    For future use: just use a space for thousands seperation (that's how I do it on anything that isn't limited to a 7seg-style display), and confuse readers by mixing commas and periods for decimals :P
  • tygrus - Sunday, November 8, 2015 - link

    I like to use a fullstop for the decimal point, an apostrophe for the thousands separator, a comma for separating items in the list, don't start a sentance with a digit.
    One list of numbers may be : 3'500'000, 45.08, 12'500.8, 9'500. Second list : 45'000, 15'000, 25'000. We use apostrophes when we contract words like don't so why not use it for contracting numbers where we would otherwise have the words thousand, millions, billions etc ?
  • mapesdhs - Tuesday, November 10, 2015 - link

    I have a headache in my eyeballs! :D
  • ws3 - Friday, November 6, 2015 - link

    North America is on the majority side on this issue. Asia, in particular, is almost completely on the side of using a dot as the decimal separator and a comma to put breaks in long numbers.

    Get with the program Europe. The world doesn't revolve around you!

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