New issue 2845: tdigest with PyPy is 8x slower than with Python3 https://bitbucket.org/pypy/pypy/issues/2845/tdigest-with-pypy-is-8x-slower-than-with
Ovanes Markarian: I ran the tests below and found out that on PyPy tdigest is horribly slow. Besides update I think all operations like merging of tdigests are slow. I opened a similar issue in tdigest GitHub: https://github.com/CamDavidsonPilon/tdigest/issues/44. My timings are: ``` #!python ========== PyPy running test in 2.7.13 (0e7ea4fe15e82d5124e805e2e4a37cae1a402d4b, Jan 06 2018, 12:46:49) [PyPy 5.10.0 with GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)] generating tdigests in batch generated items: 100 generating tdigests took: 32.5672068596 ---------- generating tdigests one by one generated items: 100 generating tdigests took: 17.4209430218 ---------- ================== Python running test in 2.7.14 (default, Mar 9 2018, 23:57:12) [GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.39.2)] generating tdigests in batch generated items: 100 generating tdigests took: 4.16117596626 ---------- generating tdigests one by one generated items: 100 generating tdigests took: 2.38711595535 ---------- ``` I've repeated the test in the official PyPy docker container with PyPy 6.0.0 (compatible with python 3) with the same outcome: https://hub.docker.com/_/pypy/ Any ideas? _______________________________________________ pypy-issue mailing list pypy-issue@python.org https://mail.python.org/mailman/listinfo/pypy-issue
