UPI: Anatomy of a Payment Transaction
timeseriesofindia.com
UPI: Anatomy of a Payment Transaction
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Re: UPI: Anatomy of a Payment Transaction
#222B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
Re: UPI: Anatomy of a Payment Transaction
#322B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
22B in the month of June 2026, so 264B extrapolated annually.
Re: UPI: Anatomy of a Payment Transaction
#422B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
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Re: UPI: Anatomy of a Payment Transaction
#5Centralized, kyced, private money transaction network. Is this something good?
Re: UPI: Anatomy of a Payment Transaction
#6Centralized, kyced, private money transaction network. Is this something good?
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Re: UPI: Anatomy of a Payment Transaction
#7Centralized, kyced, private money transaction network. Is this something good?
Yes it is. It's not trying to be new money, it's your money that already works.
Re: UPI: Anatomy of a Payment Transaction
#822B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
22B in the month of June 2026, so 264B extrapolated annually.
~8.8K TPS on average
Re: UPI: Anatomy of a Payment Transaction
#9Centralized, kyced, private money transaction network. Is this something good?
How is it KYCd yet also private?
Re: UPI: Anatomy of a Payment Transaction
#1022B transactions a year mean an average of ~700 QPS for the NPCI switch. Of course the traffic is not uniform, it probably peaks at many times that number, but that still doesn't sound that bad - for comparison, a quick Google tells me Nasdaq TotalView ITCH feed peaks at 100k+ QPS at market open.
A great lesson for system design job interviews - if this is a popular payment system in a country with 1.5 billion people, your theoretical system you're designing for a small company cargo culting Google interviews will not likely support millions or even tens of thousands of average TPS.