Load Testing and Performance

**REGISTER AT THE LUMA EVENT PAGE!!!** https://luma.com/27ja5gwl Join us for an exciting talk by Mary Gibbs, Senior Applied Scientist at Relativity. ​ ​**​Agenda:** ​​6:00 - 6:30 PM - Welcome and mingle 6:30- 6:45 PM - Introductions 6:45 - 7:30 PM - Talk 7:30 - 8:00 PM - Wrap up **​​Description:** ​If you have ever shipped a model, watched your metrics improve, and later learned from your users that something was wrong, the metrics were always wrong. You just didn’t know it yet. An evaluation consists of three components, a benchmark, a scorer, and a claim about what a score represents. Each component has its own weaknesses. Benchmarks can suffer from narrow coverage, contamination, or saturation. Scorers are often chosen for ease of automation or computation rather than for their alignment with user outcomes. And the claim connecting a score to reality is rarely made explicit. These gaps compound across the model development lifecycle. When metrics improve, teams treat that as a signal and optimize directly against it, which is how a measurement problem becomes a model problem. This talk maps where evaluations can go wrong, considers counterarguments, and ends with practical advice for building better ones. **​Speaker Bio:** ​Mary is a Senior Applied Scientist at Relativity, tackling data science challenges in the e-discovery and legal tech space. She is also an organizer for Women and Gender eXpansive Coders DC (formerly Women Who Code DC), fostering a community dedicated to empowering women and nonbinary individuals to excel in their careers. Mary's experience spans various domains. She has developed data science solutions related to job search and career progression at Teal, cybersecurity challenges at LiveAction Software, and commercial and government consulting at Mosaic Data Science. Before venturing into the field of data science, Mary conducted and published research pertaining to the cellular and molecular mechanisms underlying neurodevelopment at the National Institutes of Health. In other words, she has dissected and imaged a lot of fruit fly brains. She holds a M.S. in Data Science from The George Washington University and a B.A. in Biological Sciences from Cornell University

**Tuesday Night Rides (TNR) B-Group Edition with Ryan, Dave, Bruce, Ronne, & Renee** As you may have heard, our illustrious TNR leader Ryan is sporting a repaired knee and is in recovery mode. We are recasting the TNR as a **B-ride!** (**no faster than a 15mph** pace). **++++++++++++++++++++** **The Ride: Summary** **(Must Read)** **++++++++++++++++++++** * RIDE NAME: Tuesday Night Rides (TNR) B-Group Edition - Lazy Mikes * START LOC: Shirlington Library * START GPS: [https://goo.gl/maps/GXU2cMAG7672](https://goo.gl/maps/GXU2cMAG7672) * START PARKING: Any Garage in Shirlington * ARRIVAL: 6:00pm * SPEECH: 6:15pm * ROLLING: 6:30pm (or earlier if everyone is present) * LEVEL: \*\***Medium\*\*** * PACE: \*\***no faster than 15mph\*\*** * DISTANCE: 16 miles (Lazy Mike's) * TERRAIN: Trail / Street * RIDEWITHGPS ROUTE: **CBG_TNR_LMIKE_2026 (Updated)** **[https://ridewithgps.com/routes/55165275](https://ridewithgps.com/routes/55165275)** **++++++++++++++++++++** **The Ride: Detail** **++++++++++++++++++++** For your riding pleasure NoVA CBG presents: Tuesday Night Rides (TNR) B-Group Edition - Lazy Mikes We'll start in Shirlington and do the Lazy Mikes W&OD OUT and BACK route! * The B group will do an OUT and BACK to Lazy Mikes via the W&OD - 16 miles (ice cream optional). It's UPHILL on the way out, but a glorious DOWNHILL on the way home! This is the Medium level ride because we're going to keep a pace of 13-15mph on flat stretches (slower on hills) and the total distance is approximately 16 miles. This is a NO DROP ride so you will not be left behind but you are expected to try to keep a B-Group level pace (NFT 15mph). **++++++++++++++++++++** **The Meeting Spot:** **++++++++++++++++++++** Shirlington Library 4200 Campbell Ave Arlington, VA 22206 GPS: [https://goo.gl/maps/GXU2cMAG7672](https://goo.gl/maps/GXU2cMAG7672) We will meet directly in front of the library by the fountains. **++++++++++++++++++++** **The Ride After The Ride:** **++++++++++++++++++++** We’ll head to Samuel Beckett’s after the ride for a drink and food. We sit outside so we can bring our bikes and keep an eye on them. Join us if you like! **++++++++++++++++++++** **Ride Level Chart** **++++++++++++++++++++** NoVA CBG tries to accommodate all levels of cyclists by offering different types/levels of rides. We just ask that you come to the ride that suits your current riding ability the best. * Introductory Level: If you haven't ridden a bike in a number of years (or are uncertain of your abilities on a bicycle). * Beginner Level: You can ride for 10+ miles at a pace of 10+ to 12+ mph with potentially minor hills involved. * Medium Level: You can ride for 20+ miles at a pace of 13+ to 15+ mph with potentially moderate hills involved. * Advanced Level: You can ride for 20++ miles at a pace of 15+ mph with potentially major hills involved. Both Medium and Advanced Levels might require handling various challenges such as reading cue sheets, using a Garmin or navigation app, night riding, out of town travel, or any other odd cycling situations. **++++++++++++++++++++** **The Fine Print:** **++++++++++++++++++++** An RSVP of 'YES' is your digital signature and means you have read and understood MEETUP.com's: * "Terms of Service : Section 6. Release " found at https://www.meetup.com/terms/ * NOVA-CBG's "Assumption of Risk Agreement" found @ https://www.meetup.com/novacbg/pages/1942951/NOVA-CBG_Waiver/ Helmets are required to participate in all NOVA-CBG rides. NO exceptions. All riders ride at their own risk and with the understanding that cycling is an inherently dangerous activity. When coming to the meetup you do so voluntarily and are ready and able to participate in the ride as described under the conditions of the day. Be on time for the "pre-ride" preparation. If you do not attend the pre-ride preparation you will not be allowed to participate on the ride. Again, no exceptions.

Have you been thinking about trying self-defense training, but do not want a loud, aggressive, or overly competitive environment? This free intro class is a simple way to get started. Maryland Systema offers practical self-defense training for adults in Rockville with a focus on movement, awareness, breathing, posture, and calm under pressure. This class is designed for beginners and first-timers who want real-world self-defense training in a welcoming setting. You do not need experience. You do not need to be in top shape. You do not need a martial arts background. You just need to show up ready to learn. This is not a sport-based class built around winning points, memorizing routines, or trying to look impressive. It is a more practical approach to adult self-defense training that helps you stay balanced, aware, and functional when things feel uncertain. If you have been searching for self-defense classes in Rockville, beginner self-defense near you, or practical self-defense training for adults, this class is a good place to start. **What you will work on** * Breathing and staying calm under pressure * Movement that improves balance and mobility * Awareness and posture * Simple partner drills * Practical self-defense training for beginners **Who this class is for** * Adults new to self-defense training * Beginners looking for a low-pressure class * People who want practical self-defense instead of sport martial arts * Adults in Takoma Park, Silver Spring, Rockville, and nearby areas looking for realistic self-defense classes **What to wear** Please wear comfortable workout clothes. No uniform is required. **Why start with this class** This free intro class gives you a chance to experience the training, meet the group, and see whether Maryland Systema is the right fit for you before joining regular weekly classes. **RSVP** Reserve your spot and come try a beginner-friendly self-defense class in Rockville.

Reboot Hour is a feel-good, drop-in happy hour for meeting great people, playing a few games, and resetting your week. **Come stressed, leave refreshed. Donate old tech too!** This is the **anti-event**: no agenda, no speakers, no pressure. Just good people + games + conversation. Quick community note: eWaste Warriors has been getting noticed — **Rob Link was named a RealLIST Connectors DC 2026 Top 20 Connector**. You’ll feel that energy in the room: a lot of those “connector” folks show up here to meet people and pull others in. **Optional bonus (1 minute): bring 1 working device** (phone/tablet/laptop/etc.). Donating feels good because it helps real people and keeps good tech in circulation. Accepted: phones, tablets, laptops, smartwatches, AR/VR headsets, game consoles, headphones. Not accepted: screens, CRTs, appliances, loose batteries. **When/Where:** Tue, May 26 • **5:00–7:30 PM** (drop in anytime) Carpool Ballston — 900 N Glebe Rd, Arlington, VA (Ballston Metro)

This Tuesday we welcome Ann of ALL 2 Dance. com as guest instructor, teaching an intermediate Cha Cha lesson. A self described "dance addict," Ann began her social dance journey with the ballroom competition circuit, and honed her technique with private instruction from teachers in New York, Chicago, and Philadelphia. She teaches Ballroom, Latin, and Swing, and thoroughly enjoys helping students enrich their lives through dancing. ED AND GAIL'S TUESDAY NIGHT DANCE FOR EVERYONE Tuesday, May 26 7:00-8:00 Intermediate Cha Cha Lesson with Ann (NOTE: START TIME IS 7:00.) 8:00-10:00 Dance (Variety: Waltz, Foxtrot, Cha Cha, Rumba, Tango, East and West Coast Swing, Two-Step, Hustle, and more!) $15 cash, check, Venmo, or Zelle See you Tuesday night at Colvin Run Dance Hall, 10201 Colvin Run Rd, Great Falls, VA 22066!

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“Artemis II and Beyond,”** on how the recent space mission fits into long-term plans for the Moon, with Michael J. Neufeld, retired senior curator for the Space History Department of the Smithsonian’s National Air and Space Museum. [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond](https://events.ticketleap.com/tickets/profsandpints/dc-artemis-ii-and-beyond) .] NASA’s recent, spectacular Artemis II mission is a sign that the United States is serious about sending humans to the Moon again. Gain an understanding of how Artemis II fits in both past and planned lunar missions with historian Michael Neufeld, who was lead curator of the Smithsonian’s Destination Moon exhibit. He has taught at Johns Hopkins, Colgate, and other universities, and is the author or editor of nine books dealing with the history of technology. He’ll start by looking at the aftermath of the Apollo program of a half century ago and why it ended only four years after its first lunar mission. He’ll consider why no lasting lunar programs emerged from major announcements by two presidents, George H.W. Bush and George W. Bush, that astronauts would be going back to the Moon and on to Mars. His vividly illustrated lecture will then explore how Artemis is a product of a human spaceflight program that has changed dramatically over the past 50 years. We’ll look at how collaboration with Europe, Canada and Japan became integral to the shuttle and International Space Station programs, and how the rise of new commercial space companies such as SpaceX has enabled NASA to buy both space services and space craft. Both international and commercial partners are involved in the latest Moon efforts, with SpaceX and Blue Origin expected to supply the landers to take astronauts down to a planned base on the Moon’s South Pole. How soon will any of this happen? Probably not as quickly as NASA says, but the specter of a Chinese landing on the Moon by 2030 is one obvious reason to keep things moving along. We’ll look at the sustainability of the Artemis space program for at least the next decade or so. You’ll emerge from the talk with no doubt that exciting days are ahead for space fans. (Doors: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: The Artemis II mission launch (NASA photo).

Our first option for *Pippin* at Signature Theatre will be Saturday, May 30 at 8PM. If you cannot make that performance, we'll have another option, likely in July--please fill out this Doodle poll with all the options that can work for you: [https://doodle.com/group-poll/participate/e9XxzvJd](https://doodle.com/group-poll/participate/e9XxzvJd). I am unable to make the May 30th performance, so folks will need to buy their own tickets. You can purchase on [TodayTix](https://www.todaytix.com/booking/seating-plan?product_id=44342&content_product_id=44342&venue_id=10901&product_type=show&qt=2&showtime_id=2299954&slot=20:00&date=2026-05-30) or from [Signature Theatre's website](https://tickets.sigtheatre.org/syos/performance/13864). For folks who like front row seats, you could form a ticket block in Orchestra North. Stephen Schwartz’s (*Godspell*, *Wicked*) musical masterpiece of purpose, ambition, lust and glory sizzles for summer, thrillingly staged as only Matthew Gardiner can do. Medieval traveling performers bring to life the story of Pippin, the restless heir of Charlemagne, on his quest for purpose. Dreaming of greatness, he dives into war, passion, and even murder—only to find himself disillusioned at every turn in this dazzling and provocative coming-of-age parable about what it means to be extraordinary. Join us for this sardonic and witty extravaganza, flush with spellbinding dance and the iconic songs “Corner of the Sky,” “Magic to Do” and “Morning Glow.”

Improv workshop at Library. We will teach basics of Improvisation and rules before each game. Experienced and newbies alike are welcome to attend/participate. If you don't want to perform this time around, feel free to come enjoy the workshop and relax. If you need to cancel, please change your status to "will not attend."

Most agents think scaling a business will eventually create freedom. Instead, many end up with more people, more pressure, and even less time. On Wednesday, May 27 at 8:00 PM EST, join us live for a conversation with Dr. Al Philip-Neri, Performance Psychologist, Realtor, and real estate operator with investments across 21 U.S. markets. This session is focused on the execution side of business growth: • Leadership • Hiring • Systems • Accountability • Operational structure Not motivational fluff. Not generic mindset talk. This is a practical conversation about what it actually takes to stop being the bottleneck in your own business and build something that can operate without you carrying every moving part yourself. In this live session, we'll discuss: ✔ Why growth does not automatically create freedom ✔ The hidden reason your business still depends on you ✔ How the wrong hires quietly slow momentum and execution ✔ What changes when the right people are in the right roles ✔ How to transition from operator to true business owner This session is ideal for: • Brokerage owners • Team leaders • Agents building toward a team • Growth-minded entrepreneurs This is a live Zoom event only. No replay will be available. Please register through Zoom after RSVP'ing on Meetup so you receive the login link.

[Book Your Classes by Clicking This Link! ](https://crowndancestudio.com/group-classes/) Friday: Advanced Expression End the work week with high-energy **Advanced Rhythm** from **7:00 PM to 8:30 PM**. This session dives deep into the technicalities of Latin and Ballroom styles like Rumba, Samba, or Mambo, designed for dancers who value precision and artistic expression. For $25, you'll receive intensive instruction that pushes your physical boundaries and refines your competitive or performance edge in a high-vibe atmosphere. **When: Every Friday** **Time: 7:00 pm to 8:30 pm.** **1 Dances per month:** **\*Please check the flyer on the group class page for the dance of the month. Or contact us to find out.** **Cost:$25 per person for 90 min.**

Join us as The Washington Area Roadskaters lead you on a different adventure every week, skating through and around our Nation's Capital! Skate description will be placed here as the route is published. For up to the minute details, check Facebook and Instagram. Facebook: https://www.facebook.com/groups/WashingtonAreaRoadskaters/events Instagram: https://www.instagram.com/weareskatedc/ We hope to see you Sunday!

**\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register. (\*Multiple Meetup groups are co-organizing so RSVP's shown are just a small % attending. ABOUT: Do you know more than 6th Graders! Here is your opportunity to have some fun playing our Live interactive trivia game (Categories will be History, English/literature, Geography, Science, Math, Potpori). HOW IT WORKS: You can attend via a computer & Webcam or Smartphone/Ipad/Tablet. This completely online event will be LIVE and you will be able to see and hear the other participants while playing. In addition you get to meet and interact with other participants. At game time, your host will read off Trivia questions. Your goal is to come up with the right answer to each question and write it down on your paper. Once the round is over (about 6 questions), we will go through the answers and determine who had the highest score for the round. They will get a raffle ticket for a chance to win a prize at the end of the event. We will have multiple rounds of play and have a system to also virtually introduce you to other participants. HOW DO YOU FIND THE VIRTUAL ROOM: After you purchase your ticket, you will get a confirmation with the zoom link ON DAY OF THE EVENT. RSVPS ON HERE ARE NOT REFLECTIVE OF ACTUAL ATTENDANCE as this is a multi group event. **\*TO ATTEND REGISTER AT - [https://www.socialevents123.com/event-details.aspx?id=13390#tix](https://www.socialevents123.com/event-details.aspx?id=13390#tix)** Cost: $15- $20 depending on how early you register.

### Drop-In Improv Class — Beginner Friendly **Improv for good people.** Join us for a fun, beginner-friendly drop-in improv class focused on play, laughter, and connection — in a supportive, no-pressure environment. You don’t need performance experience, improv training, or a “funny personality.” You just need a willingness to try. *** ### What to expect Each session includes: * Friendly introductions * Easy warm-ups * Guided short-form improv games * Lots of laughter in a small, welcoming group The exercises are inspired by shows like *Whose Line Is It Anyway?*, but the focus is on participation, not performance. *** ### A few important reassurances ✔ You don’t need to be “funny” ✔ You don’t need improv experience ✔ You *do* need curiosity and a willingness to play Everything is explained clearly, and you’re never put on the spot. *** ### Who this class is for This class is a great fit if you: * Are curious about improv but a little nervous * Want to meet new people in a genuinely welcoming space * Enjoy playful learning and low-pressure activities * Want a break from overthinking and daily stress Many people arrive unsure and leave smiling. *** ### How Meetup fits in Many participants first discover Laughy Place Improv through Meetup, attend a class or two, and then decide whether they’d like to continue by booking future classes directly through the website. There’s no pressure — Meetup is meant to be an easy, friendly way to try things out. *** ### Location & logistics 📍 **Theatre on the Run** 3700 S Four Mile Run Dr, Arlington, VA Parking and entrance are on the opposite side of the building from Four Mile Run Drive. Use the door labeled **“Arlington Cultural Affairs – Main Entrance.”** Ring the doorbell to be buzzed in. Sunday classes are usually in room 174 and Wednesday classes are usually in room 147, but you can check the class list by the concierge desk to be certain. I’ll be in the room about 20 minutes early to set up and meet folks as they arrive. If you can, please come a few minutes before the scheduled start time so we can kick things off together. *** Looking forward to laughing with you!

**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** Like it or not, AI agents are now capable of turning a quickly written paragraph of requirements into a pull request that is ready to be integrated into real-world production applications and it's now our responsibility to make sure AI doesn't go rogue and take down prod - or corrupt our data by misunderstanding the requirements or our existing schemas. In this session we'll explore strategies to protect our codebases through unit and integration testing, documentation, and code review along with additional ways of providing context and guard rails to our AI agents as they carry out the work we've assigned them to do. By the time we're done, you'll have a firm grasp of the problem and understand some helpful options for protecting your codebase from vibe coding mishaps getting YOLOed into prod. **YouTube Link** https://youtube.com/live/BltmWMH1zG0?feature=share

If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar

QA or the Highway is a one-day, affordable, regional, professional conference featuring real-world experience and thought leadership in the QA and testing industry. This is a ticketed event please register here: https://www.qaorthehwy.com/ Featured Keynote Speakers: **Matthew-Hope Eland** **(Wizard at Leading EDJE)** \- An AI Specialist and Wizard at Leading EDJE who is known to teach software engineering\, AI\, and data science concepts in the most ridiculous ways possible\. Matt has used machine learning to settle debates over whether Die Hard is a Christmas movie\, reinforcement learning to drive the behavior of digital squirrels\, data analytics to suggest improvements to his favorite TV show\, and AI agents to play board games and create an AI agent with the personality of a dog\. Matt is the author of "Data Science in \.NET with Polyglot Notebooks" and "Refactoring with C\#" as well as several LinkedIn Learning courses\. Matt helps organize the Central Ohio \.NET Developer Group\, runs several blogs and a YouTube channel\, has a Master’s of Science in Data Analytics\, and is a current Microsoft MVP in AI and \.NET\. **Tatyana Arbouzova** **(CEO at Innovate QA)** \- Tatyana Arbouzova is an engineering and business leader with a strong background in Quality Engineering across multiple industries\, including Big Tech\, Healthcare\, and Entertainment\. She has held leadership roles at world\-class companies such as Microsoft\, VMware\, Disney\, and The Pokémon Company International\, where she focused on building quality\-driven cultures and scaling teams to deliver high\-impact products\. With decades of experience\, Tatyana has helped organizations transform their quality practices so teams can deliver software efficiently\, confidently\, and with measurable business outcomes\. Today\, Tatyana advises software companies on adopting AI to optimize quality practices and improve how software is delivered at scale\. She is also a passionate community builder and the founder of Innovate QA\, a thriving Seattle\-based community and conference for quality professionals\.

**Welcome to the Women’s Columbus Bogleheads® Sub-Group** This sub-group is for **women who want to learn and discuss finances in a safe, supportive space**. For those interested in moving towards financial independence and retirement by learning investment basics, choosing your 401(k) investments, minimizing taxes, and more. We’re a local chapter of **Bogleheads®**, following a long-term, practical investment philosophy: [Investment Philosophy](https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy): https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy [Bogleheads Forum](https://www.bogleheads.org/index.php): https://www.bogleheads.org/index.php No question is too small, and no experience is too simple. Share, ask, and learn — at your own pace, without judgment, in a group of like-minded women. Let’s build confidence and knowledge **together**!

Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm

REGISTER HERE: [SIGN UP TODAY](https://link.elitereimm.com/widget/form/mUCJcb9LFDGoPqRg82jP?am_id=debbie4540) Should a real estate investor get a real estate license? Sometimes it’s a massive advantage… and sometimes it can complicate your business if you don’t know what you’re walking into. In this training, we’ll cut through the “agents vs investors” drama and focus on one thing: **what makes you more money and gives you more leverage**. You’ll learn: * **When being licensed helps investors win** (better access, better data, better terms, better deal flow) * How investors use a license to **create extra profit centers** (commissions, referrals, listings, buyer rep, property management pathways) * The truth about **MLS access, pocket listings, and being first to the good deals** * How licensing impacts **wholesaling, double-closing, assignments, and disclosures** * What brokerages don’t tell you: **fees, splits, compliance, and time requirements** * When it’s smarter to **partner with an agent** instead of becoming one * A simple decision framework: **licensed vs partnered vs hybrid model** You’ll walk out knowing whether licensing fits your goals—and if it does, the cleanest path to do it without slowing down your investing. REGISTER HERE: [SIGN UP TODAY](https://link.elitereimm.com/widget/form/mUCJcb9LFDGoPqRg82jP?am_id=debbie4540)

Join Guest Host Jeff and the group as we get together to see the historical drama, PRESSURE! Brendan Frasier, Andrew Scott and Kerry Condon star in this film about the tense and dramatic days leading up to the D-Day invasion! Here are details, a trailer and our plan for this event: DESCRIPTION: The film follows General Dwight D. Eisenhower and Captain James Stagg n the tense 72 hours before D-Day. With the fate of the free world in the balance, they face an impossible choice: launch the largest and most dangerous seaborne invasion in history or risk losing the war altogether. It is directed by Anthony Maras and based on David Haig’s 2014 stage play. The film stars Brendan Fraser, Andrew Scott, Kerry Condon, Chris Messina and Damian Lewis. TRAILER: https://www.youtube.com/watch?v=xcPgrKoXe_c PLAN: We’ll plan for a 7pm-ish showing and will meet in the bar area about 30 minutes before showtime! Once showtime is announced, please purchase your ticket in advance and list your seat number in the Comments section of this event! Exact showtime and complete details will be confirmed and announced as the date gets closer! Look forward to seeing you there, Jeff P.S. from Dan: THANK YOU to Jeff for hosting this event!