Hacker News new | ask | show | jobs
by NavinF 873 days ago
> if you hold your phone in the very corner of the corner rooms, you can get it to drop

See clearly we have very different standards. If you're seeing packet loss in the corner of the room, there will also be a fuckton of L2 retransmissions throughout the room. The latter will not be visible as ping loss%, but it has the same effect on p99 latency

1 comments

I guess I don't do things on my phone that are that latency sensitive. Web browsing used to be latency sensitive, but now the typical website does nothing for 250-750ms when I click on a link, and (seemingly randomly) takes multiple seconds about 5% of the time even if I'm connected via GigE, so any network latency is masked by that pretty well.
Every website I use (besides reddit and wikia/Fandom) load almost instantly.

> typical website does nothing for 250-750ms

Two common causes:

- Your HTTP cache is slow because your workload size is larger than your SSD's SLC cache. Cheap 1TB SSDs only have 50GB SLC which gets nuked with every background software update, so buy a better one.

- your p99 DNS response time is slow. Recall that many websites require many DNS queries to randomly generated subdomains and the whole page is limited by the slowest response. Set prefetch=true in unbound and use multiple DNS servers in parallel with pihole/dnsmasq to eliminate that issue.