Step 1Step 2Step 3Step 4Step 5Step 6Step 7Step 8The append-only logAtomic renameWhat a backendengineer ownsBinary encodingBlock devicesChecksumsContext switchesCPU cachesThe CPU schedulerCrash consistencyCrash testingDirect I/OFile descriptorsFilesystemsWhat does fsyncactually promise?What happens whenfsync fails?Garbage collectionThe heap and thestackHuge pagesLatency numbersevery design sits …The memoryhierarchymmapThe page cachePage faultsProcessesSignalsInside an SSDstraceSystem callsThreadsTorn writesVirtual memory
backend-eng-graph
  • Atomic rename
  • Binary encoding
  • Block devices
  • Checksums
  • Context switches
  • CPU caches
  • Crash consistency
  • Crash testing

Phase 1 of 17

The machine under the backend

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