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git_commit commit 347512ff38748ac6ebfacbfda172edb5cf1edbe2
Author: Jordan Rupprecht <rupprecht@google.com>
Date: Fri Nov 21 07:08:15 2025 -0600

[libc++] Revert fstream::read optimizations (#168894)

This causes various runtime failures, as reported in #168628.

This reverts both #165223 and #167779
Filter

ldionne-old-macbook-results test results

Run Order Start Time Duration
Current 560256 2025-12-16T16:40:01 0:00:00
Previous 560255 2025-12-16T16:40:01 0:00:00
Baseline 485288 2025-12-16T16:40:01 0:00:00


Tests Summary

Status Group # # (B)
Performance Regressions 2 0
Performance Improvements 1 0
Added Tests 0 16
Unchanged Tests 77 64
Total Tests 80

Performance Regressions - execution_time Δ Previous Current σ Δ (B) σ (B)
735_gem5_r 4.21% 13.275 13.834 - 0.00% -
737_gmsh_r 2.33% 12.843 13.142 - 0.00% -

Performance Improvements - execution_time Δ Previous Current σ Δ (B) σ (B)
753_ns3_r -1.44% 10.207 10.059 - 0.00% -

Added Tests - execution_time
706_stockfish_r
707_ntest_r
709_cactus_r
710_omnetpp_r
721_gcc_r
723_llvm_r
727_cppcheck_r
729_abc_r
731_astcenc_r
735_gem5_r
736_ocio_r
737_gmsh_r
748_flightdm_r
750_sealcrypto_r
753_ns3_r
766_femflow_r


Report Time: 0.15s
Name Current %
706_stockfish_r 21.578 -
707_ntest_r 16.605 -
709_cactus_r 19.771 -
710_omnetpp_r 8.700 -
721_gcc_r 12.969 -
723_llvm_r 11.599 -
727_cppcheck_r 24.434 -
729_abc_r 18.797 -
731_astcenc_r 10.090 -
735_gem5_r 13.834 4.21%
736_ocio_r 16.230 -
737_gmsh_r 13.142 2.33%
748_flightdm_r 8.881 -
750_sealcrypto_r 18.401 -
753_ns3_r 10.059 -1.44%
766_femflow_r 12.817 -
Geometric Mean 14.180 -