Jaz

@jaz.sh

63876 Followers 367 Following

Jasmine (Jaz) Gender Nomad IRC made me gay Reject drab, wear bright colors and play fast Former Platform Engineering Lead at Bsky 28. she/her 🏳️‍⚧️ BSky Stats- https://bsky.jazco.dev/stats https://github.com/jazware

giant postit note with a bunch of proposed uri shapes for private data addedsses
ai nails storefront in seattle
water bottle filling station with a sign that says "no brass or copper parts inside"
A Grafana-style dark-themed monitoring dashboard for AT Protocol (Bluesky) firehose data. Four top-level stats show: Total Records at 33.4 million, 481 Distinct Collections, 1.53 million Distinct Repos, and 23.2K Records/min. Below are two horizontal bar charts: "Top Collections by Record Count" showing app.bsky.feed.like leading at 21.5 million, followed by app.bsky.feed.post at 4.11 million and app.bsky.feed.repost at 3.73 million; and "Distinct Repos per Collection" with app.bsky.feed.like again leading at 1.19 million repos. The bottom section displays a "Collection Activity Over Time" stacked area chart spanning roughly 24 hours, showing peak activity around 20:00–22:00 reaching ~35K records, with a trough in the early morning hours around 08:00–10:00. A legend table on the right lists per-collection statistics including mean, max, and total values for collections like app.bsky.graph.block, app.bsky.feed.repost, and app.bsky.feed.post.
Chat erupted at 00:37:30 UTC and peaked at 00:38:19 — the minute from 00:38 to 00:39 hit 58 messages from 33 unique chatters. That's pfrazee's all-time peak per minute in our data. 15 messages in 10 seconds at the absolute peak (00:38:10-00:38:20), nearly all from unique users.
screenshot of a tweet showing that google cloud raised direct peer egress costs by 100% in the US and 60% in europe
Log-Structured Virtual Disk (LSVD) Architecture Rust + SPDK + monoio (Thread-per-Core) Implementation This document outlines the architecture for a high-performance Log-Structured Virtual Disk system targeting: - 10,000 virtual disks per host - Sub-millisecond latency on small random writes and hot reads - S3-compatible object storage as durable backend - Integration with ContainerD (via ublk) and Cloud-Hypervisor (via vhost-user) Key Architectural Decisions: - monoio thread-per-core async runtime (not tokio) for predictable latency - ublk for container block devices (not NBD) for ~5μs overhead - SPDK for local NVMe cache access (kernel bypass) - Partitioned state - each core owns a subset of vdisks, no cross-core locking
kindle and burger and moscow mule on the bar
the port of Seattle covered in dense fog with cranes slowly poking up through the clouds to make themselves known
Grafana dashboard showing a chart of top process CPU/memory/IO from hosts in my homelab
grafana profiles drilldown showing pprof profiles from Loki
farming automation game with 4 code editors open programming a drone to automate a virtual farm
Micron stock ticker showing up 11.5% today as of ~12:45PM EST
jaz:"wait hailey jsut run your own AUR mirror" jaz:"that'd be a neat project" hailey:"is this even a thing lol"
ping showing latencies between 0.5 and 0.7ms
screenshot of OVH pricing for VPS showing $4.20/mo for the specs described in the post
pink static covering 90% of a computer monitor
photo of the bottom side of the iphone air showing a USB-C charging port
Framework desktop next to a Fractal North. it's half as long, less than half as tall, less than half as wide. Both sit in the floor.
framework desktop on a desk with a can of lo-carb monster beside it, the desktop is roughly 33% taller than the can, maybe 50% wider, and you could line up 3.5 cans standing up side by side to match the desktop depth
Alienware Area51 R5 desktop with a triangular side profile and three glowing LED strips arranged 120 degrees apart making a sorta crosshair on the side of the case. Alienware Area51 R5 desktop with a triangular side profile and three glowing LED strips arranged 120 degrees apart making a sorta crosshair on the side of the case.
A Mellanox SN2700 network switch sitting on the floor. It's got 32x100G QSFP+ ports and can run mainstream Linux distributions with full hardware support.
screenshot showing this post followed by a jerry post followed by a Cait post saying "DONNIE NO" with a picture of a cat holding a vape
A PC battlestation on a bamboo desk perfectly fit into a nook on a wood vinyl floor with two 32" 4k monitors, a pair of desktop speakers, and a mouse and keyboard. You can see a stack of moving tubs to the left of the desk. A freshly poured glass of monster sits on the left side of the desk. Blue light washes against the wall behind the desk from a hidden RGB LED strip
A PC battlestation on a bamboo desk perfectly fit into a nook on a wood vinyl floor with two 32" 4k monitors, a rolling office chair, a pair of desktop speakers, and a mouse and keyboard. You can see a stack of moving tubs to the left of the desk. A freshly poured glass of monster sits on the left side of the desk.
video from a plane window showing vortices made of water getting spun up by a jet engine
12U server rack sitting in Jaz's closet next to the networking panel for internet, you can see it fits perfectly within the width of the closet and there are coats sitting above it.
Graph of bluesky requests/sec throughput showing spikes at around 3AM, 7AM, and a big one starting near 8AM and continuing until the present PST.
A hand drawn (neutral-expression) smiley face labeled"JAZ" is wearing a floating crown next to the text "Hacker News Winner!" along with a floating trophy with "HN #1" written on it.
Graph of events per second and records per second on the atproto firehose. You can see a slight ramp from 750 evt/sec to ~860 evt/sec during the first half of the game, then a dip to 722/sec during the halftime show and a spike to 1.43k evt/sec after the halftime show (~100% increase). During the spike, posts nearly doubled in new posts per second and likes more than doubles in new likes per second.
Graph of create operations per second of the firehose over two days. You can see a diurnal cycle with a daily peak starting around 8AM PST and ending around 7:30PM PST Traffic during the trough is just under 400 evt/sec, traffic during peak is just over 800 evt/sec
a Blahaj on the couch in front of a LTT Couchripper CPU pillow (modeled after an AMD Threadripper CPU) both in front of a custom blanket my awesome astrophysicist sister got for me that shows the magnetic field of the Milky Way from the center out The blahaj is a stuffed shark with blue coloring and white underbelly. The Couchripper pillow has a silver integreated heat spreader section and then the IC packaging section which is green with gold "pads" stitched into it. The blanket is light blue with white and red lines showing the shape of the milky way's magnetic field, the galactic disk sitting on the top edge of the couch and only half of the galaxy visible to the camera.
Graph of posts, follows, likes, reposts, etc. over time over the past 3 hours. You can see a dip starting at around 9:15PM PST from ~1k events per second to ~825 events per second, then every few minutes there's a little spike for about 30 minutes, and then things bump back up to 1k evt per second as if we're back to normal and slowly decrease as the night gets late.
Graph of posts and likes per day over the past 11 days showing growth from 2.2M posts per day to 6.5M posts per day and 11.7M likes per day to 37.5M likes per day.
Graph of posts per day and likes per day showing both per day unique users performing each action and total actions per day. Graph goes back 14 days and shows growth over the past 8 days from 2.5M posts and 12.5M likes a day to 5.25M posts and 30M likes.
Graph of users over time and new users over time over the past 14 days from October 30th until the start of November 12th. We start with 13.5M users and end at 14.5M users. Each day shows a bar of new users per day and it keeps increasing, now adding over 200k new users per day.
Graph of users over time on Bluesky and new users per day showing a trail off from the last big EME over 2 weeks ago and then a steady linear increase now at 100k new users per day since November 5th. Graph starts 2 weeks ago at 12.8M users and ends at 14.25M users (midnight today).
TV at the bar showing a Bluesky post on a basketball broadcast from NBC
Users over time for Bluesky over 14 days showing a climb from ~13.275M on 10/26 to 14.02M at the start of 11/08
Event rate of the Bluesky Firehose over the past 24 hours compared to yesterday and a week ago. Current event rate is just over 500 evt/sec. This time yesterday was ~450 evt/sec, this time a week ago was ~300 evt/sec.
Graph of events over time on the Bluesky firehose nearly doubling what it was at yesterday (up from 290 evt/sec to over 500 evt/sec) and climbing.
Graph of bsky users over time over the past 90 days showing an increase from 6M users to 13.5M users in two large surges, one on August 30th from Brazil and another on October 18th from TOS and Blocking changes at twitter.
heap dump of social proof service RAM usage sitting at ~5.9GB
Users over time chart for the past 60 days starting at 6.22M users on August 22nd, jumping sharply at the end of august, then steadily increasing up until 3 days ago where we have another sharp jump.
12,002,594 users
Firehose traffic graph showing an event rate climbing from 150/sec to 1.15k/sec over 24 hours.
11M total users!
firehose events per second increasing from 150/sec 10 hours ago to 500/sec now
Firehose traffic graph growing from 150 evt/sec to over 425 evt/sec in 8 hours
Graph of total event throughput on the bsky firehose showing a increase from 150 evt/sec to 400 evt/sec starting at noon PDT
Total event throughput on the network showing a steady increase from ~150/sec at noon PDT to over 350/sec now.
Graph of events per second on the firehose showing a climb to over 300 evt/sec starting around noon PDT, compare that to yesterday where we were around 134 evt/sec at this time.
Graph of events per second over time showing a daily low of ~100 evt/sec at around 1AM PDT and then steady traffic from 8AM-8PM PDT of just about 400 evt/sec.
pprof output of in-use memory bytes showing the distribution described in the post
pprof output of allocated memory bytes
pprof profile of CPU time spent by Jetstream
Grafana screenshot of the Jetstream dash showing consumer throughput, CPU utilization, RAM utilization, disk and network util. CPU is sitting under 200ms/sec of util, RAM is floating around 100MiB, disk is around 14GiB, and net is using 12.5mbps down and 5.5mbps up.
Go CPU profile showing ~18% of CPU time in syscalls for network and the majority of work done being talking to PebbleDB and write syscalls.