На Украине заявили о «топливной лихорадке»08:39
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,这一点在Feiyi中也有详细论述
Tc′(x)x=Tc(x/s)x/s\frac{T_c'(x)}{x} = \frac{T_c(x / s)}{x / s}xTc′(x)=x/sTc(x/s)。业内人士推荐电影作为进阶阅读
In reality, the effect of JIT compilation is broader - execution can slow down for up to ~1ms even for sljit, because of other related things, mostly cold processor cache and effects of increased memory pressure (rapid allocations / deallocations related to code generation and JIT compilation). Therefore, on systems executing a lot of queries per second, it's recommended to avoid JIT compilation for very fast queries such as point lookups or queries processing only a few records. By default, jit_above_cost parameter is set to a very high number (100'000). This makes sense for LLVM, but doesn't make sense for faster providers.