Viewing profile — naveen_k
naveen_k
HN member- Joined
- Sat, Apr 18, 2020, 5:43 PM UTC
- HN karma
- 69
- Public activity
- 33 items
- HN profile
- View on Hacker News ↗
About naveen_k
https://www.naveen.ing
Email: [hey] @ [naveen] . [ing]
Recent public activity
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Comment #46621300
https://naveen.ing
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Show HN: Train yourself to handle a crying baby
‘Maybe I should’ve practiced for this’ was my first thought when we had our baby a few months ago, and she cried hard through the night in the first few weeks. I created this websi…
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Comment #44263119
I have been experimenting with using 5 phases of movements with each phase covering different areas of the screen while being actively moving. The last phase makes the dot move in …
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Comment #44254276
Ha! The timing is impeccable. This is a great demo. I've been experimenting with using gaze and eye tracking for cursor prediction as a side project. I like the idea of pressing 's…
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Comment #43553359
That's exactly what I did first! I ran a CPU torture test at full clock speed and measured the power draw at the plug, then repeated the same test with the lowest clock speed setti…
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Comment #43550842
Thanks! I initially just wanted to build a dashboard, with the power optimization part being a later addition. Based on the HN response, it seems that's the feature that resonated …
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Comment #43550790
That's actually pretty cool. ESPs are awesome little things.
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Comment #43549623
It's a 1600W PSU (Coolmaster 1600 V2 Platinum)
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Comment #43549619
I'm actually using a 1600W PSU. 1400W is my target max draw. This is a dual EPYC (64 core CPU each) system btw. The max draw by the CPU+MB+Drives running at peak 3700MHz without th…
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Comment #43549580
Thanks, I'll check it out.
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Comment #43549544
Quick update: Definitely wasn't expecting this to end up on the front page. I was more focused on publishing the dashboard than the power optimizer service I'm running. I'll take a…
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Comment #43549512
Thanks for the suggestion! I'm actually using dual EPYC server processors in this workstation, not Ryzen. I'm not sure EPYC supports PBO/Curve Optimizer functionality that's availa…
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Comment #43549420
Thanks for the suggestion. Will check it out.
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Comment #43548889
Sorry, I only open sourced the dashboard part as mentioned in the bottom of the blogpost. Still working on improving the 'Power optimizer' service so will open source that soon as …
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Comment #43548868
Thanks! That's an excellent point. You're right that there's likely a sweet spot that would be more efficient overall than aggressive throttling. The current implementation uniform…
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Comment #43548766
Good point. I'm often running multiple parallel jobs with varying priorities where uniform throttling actually makes sense. Many LLM inference tasks are long-running but not fully …
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Comment #43548629
The power optimizer daemon has only been running for a few days, so it's hard to measure in $ value but based on my peak pricing I would estimate the savings to be around a few dol…
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Comment #43548608
Definitely, I've been contemplating getting a 5-10kWh LFP battery backup with <10ms UPS switchover to run the workstation and home backup. This is an intermediate solution until th…
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Comment #43548560
A cronjob would definitely work in most cases if the goal is just to auto change freq profiles during set ToU periods. I just wanted a more flexible system where the system can aut…
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Show HN: Terminal dashboard that throttles my PC during peak electricity rates
WattWise is a CLI tool that monitors my workstation’s power draw using a smart plug and automatically throttles the CPU & GPUs during expensive Time-of-Use electricity periods. Bui…
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Comment #42873125
I've been putting off starting a blog to document my side projects for a long time. Finally having it up feels great - it motivated me to organize my thoughts and publish rather th…
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Comment #42870393
Thanks! For audio based detection, I would start with collecting a large corpus of normal shows vs ad segment audio dataset. I assume the amplitude (volume changes) and frequency d…