BigInt slowdown between 1.11 beta1 and 1.11 beta2 about julia

[giordano]

How did you measure that? For me, with beta1:

julia> @time m=[big(1)//(n+m) for n in 1:35, m in 1:35]; m*inv(m);
  0.159363 seconds (270.70 k allocations: 13.532 MiB, 16.09% gc time, 93.20% compilation time)

julia> @time m=[big(1)//(n+m) for n in 1:35, m in 1:35]; m*inv(m);
  0.042357 seconds (74.48 k allocations: 3.597 MiB, 98.83% compilation time)

and with beta2

julia> @time m=[big(1)//(n+m) for n in 1:35, m in 1:35]; m*inv(m);
  0.149622 seconds (271.06 k allocations: 13.540 MiB, 14.87% gc time, 92.18% compilation time)

julia> @time m=[big(1)//(n+m) for n in 1:35, m in 1:35]; m*inv(m);
  0.040999 seconds (74.47 k allocations: 3.595 MiB, 98.85% compilation time)

julia> versioninfo()
Julia Version 1.11.0-beta2
Commit edb3c92d6a6 (2024-05-29 09:37 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 8 × Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, haswell)
Threads: 1 default, 0 interactive, 1 GC (on 8 virtual cores)

[jmichel7]

I was using @b from Chairmarks. But I cannot reproduce with @time. Sorry for the wrong message. I close the issue