This was fixed initially by commit 0c3dd50eaecbfe2, which is the change
suggested in Paolo's comment #6, and then refined by commit
a5cb7c5afe717d4.
** Changed in: qemu
Status: New => Fix Committed
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https://bugs.launchpad.net/bugs/1895703
Title:
performance degradation in tcg since Meson switch
Status in QEMU:
Fix Committed
Bug description:
The buildsys conversion to Meson (1d806cef0e3..7fd51e68c34)
introduced a degradation in performance in some TCG targets:
--------------------------------------------------------
Test Program: matmult_double
--------------------------------------------------------
Target Instructions Previous Latest
1d806cef 7fd51e68
---------- -------------------- ---------- ----------
alpha 3 233 957 639 ----- +7.472%
m68k 3 919 110 506 ----- +18.433%
--------------------------------------------------------
Original report from Ahmed Karaman with further testing done
by Aleksandar Markovic:
https://www.mail-archive.com/qemu-devel@nongnu.org/msg740279.html
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