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GCC 10 Link-Time Optimization Benchmarks On AMD Threadripper

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  • treba
    replied
    Originally posted by milkylainen View Post

    What do you mean with not impressive?
    Just saying that I've seen cases where it had stronger impact. No offence

    Leave a comment:


  • anarki2
    replied
    How do you get 5.4 on 19.10? Custom built? I've run a 48-thread compile of our own product on the newly arrived 3960X, pretty darn sweet. It usually compiles for around 30 minutes, on this beast it went down to 6 lol.

    Currently I run it with 18.04 + hwe-edge (5.3); besides that stupid MCE bug (btw thanks for the workaround!), it seems to run solid so far.

    Leave a comment:


  • milkylainen
    replied
    Originally posted by treba View Post
    Hm these benchmarks do not seem to be too impressive
    What do you mean with not impressive? I think it's super impressive that you can eek out several more percent performance just from "smarter linking". And that's just from watching one program interact with the system and limited hardware resources.

    Granted there seems to be some regressions that need investigation but other than that, LTO looks like a boon for a lot of use cases.
    Last edited by milkylainen; 07 January 2020, 05:04 PM.

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  • tildearrow
    replied
    Typo:

    Originally posted by phoronix View Post
    The BYTE Dhyrostone 2 benchmark benefited a great deal from Link-Time Optimizations, coming out about 40% faster.

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  • Michael
    replied
    Originally posted by Mario Junior View Post
    Now try with PGO
    FTA: "and is complementary to the recent Profile Guided Optimization benchmarks."

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  • Mario Junior
    replied
    Now try with PGO

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  • treba
    replied
    Hm these benchmarks do not seem to be too impressive, but IIRC Firefox does benefit quite a bit from it, which AFAIK is one of the reasons it performs relatively well on Fedora compared to other distros (see https://www.phoronix.com/scan.php?pa...os-50cpu&num=2)

    See also https://mastransky.wordpress.com/201...-with-pgo-lto/ and https://mastransky.wordpress.com/202...-team-at-2019/
    Last edited by treba; 07 January 2020, 04:30 PM.

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  • GCC 10 Link-Time Optimization Benchmarks On AMD Threadripper

    Phoronix: GCC 10 Link-Time Optimization Benchmarks On AMD Threadripper

    Stemming from the recent news in Fedora 32 potentially LTO'ing packages by default for better performance and not yet having checked on the Link-Time Optimization performance of the in-development GCC 10, here is a fresh look at the possible performance gains from making use of link-time optimizations for generating faster binaries. This round of testing was done on the AMD Ryzen Threadripper 3960X and is complementary to the recent Profile Guided Optimization benchmarks.

    Phoronix, Linux Hardware Reviews, Linux hardware benchmarks, Linux server benchmarks, Linux benchmarking, Desktop Linux, Linux performance, Open Source graphics, Linux How To, Ubuntu benchmarks, Ubuntu hardware, Phoronix Test Suite
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