Dynamic Programming: 5 Universal Templates
Master DP: 5-step universal framework then 5 high-frequency templates: Knapsack, Subsequence, Interval DP, Bitmask DP, Tree DP, each with canonical code and variant keys.
Go
3 posts
Linux Performance Tuning: perf, bpftrace & BCC
Tune Linux across CPU/mem/IO/net: perf for CPU sampling, bpftrace one-liners for kernel tracepoints, BCC classics biolatency/offcputime to pinpoint production bottlenecks with real incident methodology.
Go Concurrency: Goroutines, Channels & sync.WaitGroup
Complete Go native concurrency guide: lightweight goroutines, CSP-style channels, sync.WaitGroup, Context cancellation, worker pool patterns, and goroutine leak prevention.