[erlang-questions] AMD Ryzen anyone?
Thu Jan 4 01:48:52 CET 2018
On 03/01/2018 08:21, Iblis Lin wrote:
> forgot to CC the list.
> On 01/03/2018 01:21 PM, Iblis Lin wrote:
>> well, purchasing decision is up to you, but I want to share my personal
>> I will vote -100 for the Ryzen build. For me, the term "Ryzen" means
>> malicious trolling.
>> It wasted my time and mental efforts.
>> I will show you my journal:
>> - I set up the Ryzen box in 2017/5. Mine is 1700 (8 cores 16 threads).
>> - I install Arch Linux, ran CouchDB on it... and found the machine
>> crash and reboot regularly in an interval of 2-3 days.
>> - I also tried to build mainline kernel, (at that moment, it's 4.12
>> IIRC), not work , still crashing or freezing.
>> - Another test: disabling all deamon, the box can be alive over a week.
>> - Changing memory module in 2017/6, not work.
>> - 2017/9 I RMA-ed it.
>> - After RMA, it still keeps crashing, hard freezing, soft freezing...
>> within 3-6 hr if I run something on it.
>> the kill-ryzen script DOES kill my box, even it's the new CPU back
>> from RMA.
>> The *improvement* is the crashing interval shrunk. Thank you AMD.
>> - 2017/10, I changed my OS from Arch to Ubuntu. not work.
>> On 01/03/2018 06:46 AM, Adam Rutkowski wrote:
>>> Hey all,
>>> I'm thinking of building a Ryzen machine, mainly for Erlang development. There's this rather obscure bug with some Ryzen processors on Linux/BSD  and I'm worried I might be getting a unit from the faulty batch; I have no means of verifying this before purchasing from my local suppliers. I'm wondering if I should I expect any issues with Erlang VM doing the multi-core heavy lifting.
>>> : https://www.phoronix.com/scan.php?page=news_item&px=Ryzen-Segv-Response
Interestingly, it's not that not choosing Ryzen guarantees you a
Arguably 50% slowdown or a security flaw is better than a random crash.
But maybe the real lesson is to choose a processor that doesn't have any
known vulnerability so far, e.g. Threadripper or a dedicated server
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