> A Banana Pi is not the fastest developer platform.
replyWhat is the current fastest platform that isn’t exorbitantly expensive? Not upcoming releases, but something I can actually buy.
I check in every 3-6 months but the situation hasn’t changed significantly yet.
What is the current fastest ppc64le implementation that isn’t exorbitantly expensive? How about the s390x?
replyA P550 based board is the best you can get for now (~2-3x faster than the Banana Pi). In 2-3 months there should be a number of SpaceMIT k3 chips that are ~4-6x faster than the banana pi and somewhat reasonably priced (~200-300). By the end of the year, however, you should be able to get an ascalon chip which should be way way faster than that (roughly apple m1/zen3 speed)
replyI was really surprised by the s390x performance, but I also don't really understand why there are build time listed by architecture, not the actual processors.
replyWhat's fast on Z platforms is typically IO rather than raw CPU - the platform can push a lot of parallell data. This is typically the bottleneck when compiling.
replyThe cores are in my experience moderately fast at most. Note that there are a lot of licencing options and I think some are speed-capped - but I don't think that applies to IFL - a standard CPU licence-restricted to only run linux.
I thought I read somewhere that Z CPUs run at 5GHz ??
replyProbably because that's just the infrastructure they have.
replyi686 builds even faster
replyWhich risc-v implementation is considered fast?
reply> Which risc-v implementation is considered fast?
replySpacemiT K3 is 2010 Macbook performance single-core, 2019 Macbook Air multi-core, and better than M4 Apple Silicon for AI.
So I guess it depends on what you are going to do with it.
Nothing shipping today is really competitive with modern ARM or x86. The SiFive P870 and Tenstorrent Ascalon (Jim Keller's team) are the most anticipated high-performance designs, but neither is widely available. What you can actually buy today tops out around Cortex-A76 class single-thread performance at best, which is roughly where ARM was five or six years ago.
replyI remember taking down some notes wrt SiFive P870 specs, comparing them to x86_64, and reaching the same conclusion. Narrower core width (4-wide vs 8-wide), lower clock frequency (peaks at 3GHz) and no turbo (?), limited support for vector execution (128-bit vs 512-bit), limited L1 bandwidth (1x 128-bit load/cycle?), limited FP compute (2x 128-bit vs 2x 512-bit), load queue is also inconveniently small with 48 entries (affecting already limited load bandwidth), unclear system memory bandwidth and how it scales wrt the number of cores (L3 contention) although for the latter they seem to use what AMD is doing (exclusive L3 cache per chiplet).
replySpacemiT K3 is about the same performance as a Rockchip RK3588. So, 4 years ago?
replyExcept the K3 kills it on AI (60 TOPS).
DC-ROMA 2 is on the Rasperry 4 level of performance last I heard
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