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Comment by tyingq | Hacker News Reader

"hope it will be able to process as many as 10,000 transactions per second, which far surpasses Visa’s capability to process around 1,700"

I think somebody got bad info about VISA's capabilities. 1700/tps is probably their average tps over a day...solely based on needs/demands...not what it could do. Not the peak, and not the edge of their performance envelope. It's likely they can already handle much more than the proposed 10k/sec of this sharded block chain.

Edit: Yep...pretty sure someone started with "Visa does roughly 150M transactions a day"[1] then did 150,000,000 / 24 / 60 / 60 = ~ 1736

[1] https://mybroadband.co.za/news/security/190348-visanet-handl...

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Those are old numbers. According to the VISA Annual Report from 2017, the VISA network does ~3500 transactions per second (tps) (average) [0] and a "FactSheet" put out by VISA claims 65,000 peak tps [1].

And AliPay had ~325,000 peak tps according to their 2017 annual report [2].

[0] https://s1.q4cdn.com/050606653/files/doc_financials/annual/2...

[1] https://usa.visa.com/dam/VCOM/download/corporate/media/visan...

[2] https://www.alibabagroup.com/en/news/press_pdf/p180201.pdf

I wouldn't trust the Alipay stats. The aliexpress 11.11 pre-sale BS forces everyone's purchases to be ordered in advance for two weeks at one time of the year. The actual sales are often as little as 1% discount. They then claim insane one day sales figures when they batch process all those transactions through Alipay.

https://aliexpressblog.com/the-november-11th-sales-is-now-op...

If you were able to quickly find these numbers, and if those "academics" can't get latest facts right...

Good golly, articles like this drive me nuts. False future hyped promise.

My team shipped over the last 4 years, and our system has already done ~3300 transactions per second (tps) (average) in production on $99 worth of P2P hardware.

Internet Archive, top 300 global site, is also running it in production as well. I just gave a talk there about how to do distributed load testing in a decentralized network: https://youtu.be/hYH2Z1A0x3c?t=3635

More info about production-ready use cases at https://github.com/amark/gun .

VISA must have insane scaling abilities: even though events like Black Friday and Prime Days overwhelm other infrastructure (such as physical store capacity or Amazon's website), I don't recall hearing about a VISA processing outage that was correlated with demand.

They do. And it's based on TPF mainframes :)

Apparently peak is more like 56k

https://mybroadband.co.za/news/security/190348-visanet-handl...

From my understanding (outside the industry but related field) VISA aim to be capable of 40k tps

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