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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 16 min read
How to Cut AWS Bill by 42% with Graviton4 and Spot Instances: Step-by-Step Guide
In 2024 Q2, a production workload I audited for a Series C fintech was burning $142k/month on AWS...
#bill#graviton4#spot#instances
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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 16 min read
Postmortem: Over-Provisioned GPU Instances Cost Us $1M in 2026 — We Fixed It with NVIDIA L4 and AWS Inferentia 3
In Q3 2026, our inference fleet’s idle GPU spend hit $1.02M in a single quarter — all because we...
#postmortem#overprovisioned#instances#cost
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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 20 min read
War Story: A Karpenter 1.1 Bug Caused Our EC2 Instances to Be Over-Provisioned by 40% – Here's the Fix
\n In Q3 2024, a silent bug in Karpenter 1.1's NodePool consolidation logic caused our production.....
#story#karpenter#caused#instances
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ANKUSH CHOUDHARY JOHALApr 28, 2026 • 14 min read
War Story: We Migrated From AWS EC2 to GCP Axion Instances and Cut Compute Costs by 40%
At 2:14 AM on a Tuesday, our p99 API latency spiked to 4.7 seconds, AWS EC2 m5.2xlarge spot instance...
#story#migrated#axion#instances
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