Re: [9fans] Plan9 on Pi 3B+

They’re still under the same baseline SoC constraints (plus the USB bus). Biggest constraint for me is the lack of RAM, though. R. > On 5 Apr 2018, at 23:13, hiro <23h...@gmail.com> wrote: > > "The Python performance with this new Raspberry Pi 3 is now in line > with the Pine A64. > While the

Re: [9fans] Plan9 on Pi 3B+

"The Python performance with this new Raspberry Pi 3 is now in line with the Pine A64. While the PHP performance is between the Pine A64 and ODROID-C2" from this test it sounds they didn't care much about typical scientific supercomputing... and their udp throughput test is slower than the tcp

Re: [9fans] Plan9 on Pi 3B+

> do you any feeling why plan9 sees only 200Mbps ether? > > is it the stack design, how plan9 accesses the hardware? or maybe the 300Mbps > quoted is only when using jumbo frames? Jumbo frames might help if the bottleneck was in the ip stack, but I think the limiting factor is the Plan 9 usb

Re: [9fans] Plan9 on Pi 3B+

The higher number seems to be from the netperf benchmark. See https://www.phoronix.com/scan.php?page=article=raspberrypi-3-bplus=3 > On Apr 5, 2018, at 10:02 AM, Steve Simon wrote: > > > hi, > > great work richard, i hope to try this soon. the network performance is the

Re: [9fans] Plan9 on Pi 3B+

hi, great work richard, i hope to try this soon. the network performance is the biggest draw for me. do you any feeling why plan9 sees only 200Mbps ether? is it the stack design, how plan9 accesses the hardware? or maybe the 300Mbps quoted is only when using jumbo frames? -Steve On 5 Apr

Re: [9fans] Plan9 on Pi 3B+

> Running Linux, 3B+ seems perceptibly faster than 3B. 1400Mhz vs 1200Mhz might be perceptible, and the improved heat management will help if your CPU frequency was being temperature-throttled. Ethernet bandwidth for the 3B+ on linux is claimed to be about 300Mbit/s. With Plan 9, I'm seeing a

Re: [9fans] Plan9 on Pi 3B+

Updated kernel for the 3B+ is now on sources. Also contains some performance tweaks for ethernet and usb which should apply to all Pi models. Kernel source in /n/sources/contrib/miller/9/bcm USB ether driver in /n/sources/patch/usb-ether-lan78xx Compiled kernels in /n/sources/contrib/miller/9pi2

Re: [9fans] Plan9 on Pi 3B+

Thanks! I got one recently and have been meaning to ask about his. Running Linux, 3B+ seems perceptibly faster than 3B. On Tue, Apr 3, 2018 at 2:05 PM, Richard Miller <9f...@hamnavoe.com> wrote: > > But what is the > > rationale for the lock in the second loop? > > Sorry for the confusing

Re: [9fans] Plan9 on Pi 3B+

> But what is the > rationale for the lock in the second loop? Sorry for the confusing code. The startlocks are locked by cpu0 before booting the secondary cores. Each core unlocks its own startlock when it starts. Cpu0 blocks on each startlock waiting for the corresponding core to unlock it,

Re: [9fans] Plan9 on Pi 3B+

I would guess it's a bug because the second bug is starting the first loop st 0- erik