From: Carlos Eduardo de Paula <me@carlosedp.com>
To: Paul Walmsley <paul.walmsley@sifive.com>
Cc: linux-riscv@lists.infradead.org
Subject: Re: Changing SiFive Unleashed core clock rate on 5.x kernel
Date: Fri, 16 Aug 2019 18:44:00 -0300 [thread overview]
Message-ID: <CADnnUqfUMLhHviuooyi_msTtRCykyG10dSCERWieu1vzZOOH5w@mail.gmail.com> (raw)
In-Reply-To: <CADnnUqfakeD49FhGGJaUT9Jut16=wK1rrQcoaZXZuwdzkk-f3g@mail.gmail.com>
On Fri, Aug 16, 2019 at 6:17 PM Carlos Eduardo de Paula
<me@carlosedp.com> wrote:
>
> On Fri, Aug 16, 2019 at 5:57 PM Paul Walmsley <paul.walmsley@sifive.com> wrote:
> >
> > On Fri, 16 Aug 2019, Carlos Eduardo de Paula wrote:
> >
> > > Hi Paul
> >
> > Hi. Just as an aside, kernel list etiquette usually disapproves of
> > top-posting. Better to find out sooner rather than later, I guess...
> >
> > > I've built that 5.3 kernel and also used the DTs on my 5.2 Kernel but on
> > > both cases the network interface didn't come up.
> > >
> > > I used both defconfig and my own .config, after this I've built latest
> > > OpenSBI with the DT with command:
> > >
> > > make CROSS_COMPILE=riscv64-unknown-linux-gnu- \
> > > PLATFORM=sifive/fu540 \
> > > FW_PAYLOAD_PATH=../linux/arch/riscv/boot/Image \
> > > FW_PAYLOAD_FDT_PATH=../linux/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dtb
> > >
> > >
> > > Any adjustment I need?
> >
> > For v5.3-rc4, you'll probably need this patch:
> >
> > https://lore.kernel.org/linux-riscv/1563534631-15897-2-git-send-email-yash.shah@sifive.com/
> >
> > and you'll also need something like this for v5.2:
> >
> > https://lore.kernel.org/linux-riscv/1563534631-15897-3-git-send-email-yash.shah@sifive.com/
> >
> >
> > - Paul
>
> Thanks for the tip Paul and for being very helpful!
>
> I've applied the 5.3 patch you pointed and it worked!
>
> Thanks again!
>
> --
> ________________________________________
> Carlos Eduardo de Paula
> me@carlosedp.com
> http://carlosedp.com
> http://twitter.com/carlosedp
> Linkedin
> ________________________________________
BTW, here are some results with 1Ghz and 1.4Ghz using 7zip benchmark:
## With 1Ghz clock
7-Zip 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: 32000000 64000000 64000000 64000000 128000000 256000000
512000000 1024000000 2048000000
RAM size: 7973 MB, # CPU hardware threads: 4
RAM usage: 882 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 1333 297 437 1298 | 27862 398 597 2377
23: 1322 303 445 1347 | 27705 400 600 2397
24: 1301 306 457 1400 | 27273 399 601 2394
25: 1300 314 473 1484 | 26903 399 600 2394
---------------------------------- | ------------------------------
Avr: 305 453 1382 | 399 599 2391
Tot: 352 526 1886
## With 1.4Ghz Clock
7-Zip 16.02 : Copyright (c) 1999-2016 Igor Pavlov : 2016-05-21
p7zip Version 16.02 (locale=en_US.UTF-8,Utf16=on,HugeFiles=on,64 bits,4 CPUs LE)
LE
CPU Freq: 64000000 - 64000000 - 128000000 256000000 512000000
1024000000 2048000000
RAM size: 7973 MB, # CPU hardware threads: 4
RAM usage: 882 MB, # Benchmark threads: 4
Compressing | Decompressing
Dict Speed Usage R/U Rating | Speed Usage R/U Rating
KiB/s % MIPS MIPS | KiB/s % MIPS MIPS
22: 1805 307 573 1757 | 38545 399 823 3289
23: 1785 313 581 1819 | 37999 399 824 3288
24: 1583 288 592 1703 | 37377 399 823 3281
25: 1733 324 611 1979 | 36908 399 822 3285
---------------------------------- | ------------------------------
Avr: 308 589 1814 | 399 823 3286
Tot: 354 706 2550
Thanks!
--
________________________________________
Carlos Eduardo de Paula
me@carlosedp.com
http://carlosedp.com
http://twitter.com/carlosedp
Linkedin
________________________________________
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prev parent reply other threads:[~2019-08-16 21:44 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 20:32 Changing SiFive Unleashed core clock rate on 5.x kernel Carlos Eduardo de Paula
2019-08-13 21:22 ` Paul Walmsley
2019-08-14 2:09 ` Paul Walmsley
2019-08-16 18:59 ` Carlos Eduardo de Paula
2019-08-16 19:50 ` Paul Walmsley
2019-08-16 20:50 ` Carlos Eduardo de Paula
2019-08-16 20:57 ` Paul Walmsley
2019-08-16 21:17 ` Carlos Eduardo de Paula
2019-08-16 21:44 ` Carlos Eduardo de Paula [this message]
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