Twitter's high ROI engineering work • Hacker News Board

Re: Twitter's high ROI engineering work

#11

Post by tjchear » Wed, Nov 16, 2022, 10:46 PM UTC

zimpenfish wrote: post #5

davydm wrote: post #3

funny how the argument that Elon knows nothing by bringing up RPCs is backed by (in part) a trace diagram showing RPC's all over the place. slow clap

> Elon knows nothing by bringing up RPCs As best I understand the Twitter spat, he was claiming the client was making 1000 RPCs to generate the home timeline - hence it being slower in India where mobile internet is slower. Except the Android dev pointed out it was actually only 6 (IIRC) calls from the client and slowness had nothing to do with that.

Didn't Elon clarify that he's referring to the RPCs between services in the BE?

Re: Twitter's high ROI engineering work

#12

Post by guax » Thu, Nov 17, 2022, 10:06 AM UTC

tjchear wrote: post #11

zimpenfish wrote: post #5

Earlier quoted context omitted.

> Elon knows nothing by bringing up RPCs As best I understand the Twitter spat, he was claiming the client was making 1000 RPCs to generate the home timeline - hence it being slower in India where mobile internet is slower. Except the Android dev pointed out it was actually only 6 (IIRC) calls from the client and slowness had nothing to do with that.

Didn't Elon clarify that he's referring to the RPCs between services in the BE?

So there is a specific BE only for a region that is slow but another that is not?

Re: Twitter's high ROI engineering work

#13

Post by zimpenfish » Thu, Nov 17, 2022, 11:47 AM UTC

tjchear wrote: post #11

zimpenfish wrote: post #5

Earlier quoted context omitted.

> Elon knows nothing by bringing up RPCs As best I understand the Twitter spat, he was claiming the client was making 1000 RPCs to generate the home timeline - hence it being slower in India where mobile internet is slower. Except the Android dev pointed out it was actually only 6 (IIRC) calls from the client and slowness had nothing to do with that.

Didn't Elon clarify that he's referring to the RPCs between services in the BE?

Possible he did, I suppose, but I never saw it in any of the recaps / threads. But also wouldn't make a lick of sense talking about India vs US for speed...