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bongoDev | Performance Engineering & Load Testing Pro - Knowledge Hub

Knowledge Hub/Performance Engineering & Load Testing Pro

Englishবাংলা

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Performance Engineering & Load Testing Pro

Production performance engineering across latency, throughput, concurrency, workload modeling, k6, JMeter, profiling, Linux, networking, Kubernetes, databases, caches, queues, autoscaling, CI performance gates, soak/spike/breakpoint testing and evidence-driven optimization.

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৳ 320.00৳ 120.00Save ৳ 200.00

Lessons

51 published lessons · 1 free preview

Some lessons are not available in this language yet. Those lessons open in English.

01Performance Engineering Mental Model: Measure Before You OptimizeBuild a systems-oriented performance mindset based on measurable user outcomes, controlled experiments and bottleneck evidence.শুরুর স্তর · 30 মিনিটের পাঠফ্রি প্রিভিউফ্রি প্রিভিউ
02Performance Requirements: SLOs, Budgets & Acceptance Criteria

Translate business expectations into measurable performance targets and pass/fail criteria.

শুরুর স্তর · 28 মিনিটের পাঠ

লক করা

লক করা

03Latency, Throughput, Concurrency & RPS: Know What You Are MeasuringSeparate request latency, completed work, in-flight concurrency and arrival rate so test results are interpreted correctly.শুরুর স্তর · 30 মিনিটের পাঠলক করালক করা

04Percentiles, Histograms & Tail LatencyUse distributions and percentile latency instead of averages that hide the user experience at the tail.শুরুর স্তর · 32 মিনিটের পাঠলক করালক করা

05Little's Law, Queueing & Saturation IntuitionUse simple queueing relationships to reason about concurrency, latency and the onset of saturation.মাঝারি · 34 মিনিটের পাঠলক করালক করা

06Performance Test Types: Smoke, Load, Stress, Spike, Soak & BreakpointChoose the test type based on the engineering question instead of running one generic high-load test.শুরুর স্তর · 30 মিনিটের পাঠলক করালক করা

07Workload Modeling: Turn Production Traffic into a Realistic TestModel user journeys, endpoint mix, think time, data distribution, cache behavior and seasonality from real production evidence.মাঝারি · 34 মিনিটের পাঠলক করালক করা

08Open vs Closed Workload Models & Coordinated OmissionUnderstand how load-generator scheduling can hide overload and choose open or closed models intentionally.উন্নত · 36 মিনিটের পাঠলক করালক করা

09Test Environment Engineering & Production RealismDesign test environments that are representative enough to make performance conclusions defensible.মাঝারি · 30 মিনিটের পাঠলক করালক করা

10Performance Test Plan: Hypothesis, Scope, Safety & Exit CriteriaWrite a reproducible test plan before generating traffic, including safety limits and decision rules.মাঝারি · 32 মিনিটের পাঠলক করালক করা

11k6 Fundamentals: Script, VUs, Iterations, Checks & ResultsBuild a maintainable k6 test script and understand setup, VU execution, checks, metrics and summaries.শুরুর স্তর · 34 মিনিটের পাঠলক করালক করা

12k6 Scenarios & Executors: Model Traffic PreciselyUse scenarios and executors to model VU-based and arrival-rate traffic independently.মাঝারি · 36 মিনিটের পাঠলক করালক করা

13k6 Thresholds, Checks, Custom Metrics & TagsTurn performance expectations into automated gates while keeping results attributable to endpoints and business journeys.মাঝারি · 34 মিনিটের পাঠলক করালক করা

14k6 Test Data, Correlation, Authentication & StateBuild realistic stateful tests without creating artificial hot spots or unsafe shared credentials.মাঝারি · 36 মিনিটের পাঠলক করালক করা

15Protocol Testing: HTTP, gRPC, WebSockets & Browser-Level PerformanceChoose protocol-level or browser-level testing based on whether you need backend capacity, real browser behavior or both.মাঝারি · 34 মিনিটের পাঠলক করালক করা

16Apache JMeter Fundamentals: Test Plans, Thread Groups & SamplersUnderstand JMeter test-plan structure and build a small reusable HTTP load test.শুরুর স্তর · 34 মিনিটের পাঠলক করালক করা

17JMeter Parameterization, Correlation, Assertions & ReuseCreate realistic stateful JMeter workloads with CSV data, extractors, variables, assertions and reusable controllers.মাঝারি · 36 মিনিটের পাঠলক করালক করা

18JMeter Distributed Testing & Load-Generator SizingScale load generation without mistaking controller or worker saturation for target-system capacity.উন্নত · 38 মিনিটের পাঠলক করালক করা

19Load-Testing Tool Selection: k6, JMeter, wrk, Vegeta, Locust & GatlingSelect tools based on workload model, protocol, scripting ecosystem, distributed execution and result needs.মাঝারি · 30 মিনিটের পাঠলক করালক করা

20Validate the Load Generator: Prove Your Test Can Generate the Intended LoadMeasure generator CPU, memory, network, sockets and dropped work before trusting target-system results.উন্নত · 34 মিনিটের পাঠলক করালক করা

21Observe the System Under Test: Metrics, Logs, Traces & ProfilesInstrument the target so load-test graphs explain why behavior changed, not just that it changed.মাঝারি · 34 মিনিটের পাঠলক করালক করা

22RED, USE & Golden Signals for Performance TestsUse structured signal frameworks to avoid dashboard wandering during a load test.মাঝারি · 30 মিনিটের পাঠলক করালক করা

23CPU Performance: Utilization, Run Queue, Throttling & ProfilingDiagnose CPU-bound performance using system metrics and profiles rather than CPU percentage alone.উন্নত · 36 মিনিটের পাঠলক করালক করা

24Memory, Garbage Collection, Leaks & Allocation PressureSeparate healthy cache usage from heap pressure, GC stalls, leaks, paging and OOM behavior.উন্নত · 38 মিনিটের পাঠলক করালক করা

25Disk I/O, Filesystems & Storage LatencyDiagnose storage bottlenecks using latency, queueing and workload characteristics instead of disk utilization alone.উন্নত · 34 মিনিটের পাঠলক করালক করা

26Network, TCP, TLS & Load Balancer PerformanceFind performance loss caused by connection setup, retransmission, TLS, proxying, network limits or load-balancer behavior.উন্নত · 36 মিনিটের পাঠলক করালক করা

27Database Performance: Queries, Indexes, Locks & Connection PoolsCorrelate application latency with query plans, lock waits, I/O and connection-pool behavior.উন্নত · 40 মিনিটের পাঠলক করালক করা

28Cache Performance: Hit Ratio, Stampedes, Eviction & Hot KeysTest cache behavior under cold start, steady state, expiration waves and hot-key traffic.উন্নত · 34 মিনিটের পাঠলক করালক করা

29Kafka, Queues & Backpressure Under LoadMeasure asynchronous systems using arrival rate, processing rate, lag, queue depth and age rather than HTTP latency alone.উন্নত · 36 মিনিটের পাঠলক করালক করা

30Application Profiling: Hot Paths, N+1 Calls & Serialization CostsUse code-level profiling and tracing to locate CPU, allocation, I/O and fan-out costs inside the application.উন্নত · 38 মিনিটের পাঠলক করালক করা

31Concurrency, Threads, Event Loops, Locks & Pool SaturationDiagnose throughput limits caused by serialized work, lock contention, blocked event loops and undersized or oversized pools.উন্নত · 38 মিনিটের পাঠলক করালক করা

32Kubernetes Performance: Requests, Limits, Throttling & SchedulingUnderstand how Kubernetes resource configuration and placement change application performance under load.উন্নত · 38 মিনিটের পাঠলক করালক করা

33Autoscaling Performance: HPA Reaction, Warm-Up & Scaling LagTest autoscaling as a dynamic control loop rather than assuming more replicas appear instantly.উন্নত · 36 মিনিটের পাঠলক করালক করা

34Cloud Load Balancers, API Gateways & Serverless PerformanceInclude managed edge services, quotas, cold starts and scaling behavior in the performance model.উন্নত · 34 মিনিটের পাঠলক করালক করা

35Frontend & CDN Performance: Payload, Caching & User-Perceived SpeedConnect backend load testing with CDN behavior, payload size and real browser user experience.মাঝারি · 32 মিনিটের পাঠলক করালক করা

36Microservices & Distributed Latency BudgetsAnalyze fan-out, retry amplification and dependency tail latency across multi-service request paths.উন্নত · 38 মিনিটের পাঠলক করালক করা

37Performance Regression Testing in CI/CDAutomate lightweight performance gates while reserving large-scale tests for appropriate environments and schedules.মাঝারি · 34 মিনিটের পাঠলক করালক করা

38Test Data, Isolation & RepeatabilityKeep load tests repeatable by controlling data state, cleanup, uniqueness and interference with other workloads.মাঝারি · 32 মিনিটের পাঠলক করালক করা

39Soak Testing: Leaks, Drift & Long-Running StabilityUse long-running tests to reveal memory growth, resource leaks, connection churn, log growth and backlog accumulation.উন্নত · 36 মিনিটের পাঠলক করালক করা

40Spike & Burst Testing: Flash Crowds and Sudden DemandMeasure how queues, autoscaling, caches and dependencies react when traffic changes faster than the system can adapt.উন্নত · 34 মিনিটের পাঠলক করালক করা

41Breakpoint Testing & the Performance KneeFind the load level where latency accelerates, errors rise or throughput stops scaling—without confusing the failure point with safe capacity.উন্নত · 36 মিনিটের পাঠলক করালক করা

42Analyze Results: Correlation, Causation & Bottleneck ProofTurn test output into a defensible explanation of what limited performance and how you know.উন্নত · 38 মিনিটের পাঠলক করালক করা

43Optimization Workflow: Fix the Bottleneck, Re-Test & Prevent RegressionOptimize one proven constraint at a time and verify both local and end-to-end effects.উন্নত · 34 মিনিটের পাঠলক করালক করা

44Rate Limiting, Admission Control & Graceful Degradation Under LoadProtect critical paths when offered load exceeds safe processing capacity.উন্নত · 34 মিনিটের পাঠলক করালক করা

45Timeouts, Retries & Retry Amplification in Performance TestsModel client retry behavior because it can multiply offered load precisely when dependencies are slow.উন্নত · 34 মিনিটের পাঠলক করালক করা

46Performance Baselines, Variance & Statistical ThinkingCompare runs fairly and recognize noise, warm-up effects and statistically weak conclusions.মাঝারি · 34 মিনিটের পাঠলক করালক করা

47Performance Reports: Communicate Findings to Engineers & LeadersTurn raw test data into an actionable engineering decision with assumptions, evidence and risk.মাঝারি · 30 মিনিটের পাঠলক করালক করা

48100k Requests Lab: Design the Test Before Chasing the NumberBuild a safe 100k-request-scale exercise that distinguishes total requests, RPS and concurrent users.উন্নত · 44 মিনিটের পাঠলক করালক করা

49Performance Incident Debugging PlaybookUse a repeatable evidence path when latency rises, throughput drops or load tests behave unexpectedly.উন্নত · 42 মিনিটের পাঠলক করালক করা

50Performance Engineering Command & Query PlaybookConnect load-testing, Linux, Kubernetes, network, Prometheus, Redis and Kafka commands to the performance question each answers.উন্নত · 42 মিনিটের পাঠলক করালক করা

51Performance Engineering & Load Testing Pro CheatsheetA compact field reference for workload design, testing, metrics, bottlenecks and result interpretation.মাঝারি · 34 মিনিটের পাঠলক করালক করা