Answer
Tier 0 generates fast unoptimized code for quick startup; Tier 1 recompiles hot paths with optimizations. Tiered PGO enhances long-running performance. Together they balance startup speed and runtime throughput.
Tier 0 generates fast unoptimized code for quick startup; Tier 1 recompiles hot paths with optimizations. Tiered PGO enhances long-running performance. Together they balance startup speed and runtime throughput.
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Source: SugharaIQ