[Bug gas/24165] fivefold time and memory usage since commit 3ae729d5 on large files generated by lto

[belyshev at depni dot sinp.msu.ru]

https://sourceware.org/bugzilla/show_bug.cgi?id=24165

--- Comment #4 from Serge Belyshev <belyshev at depni dot sinp.msu.ru> ---
(In reply to H.J. Lu from comment #3)

Thanks! I have benchmarked different MAX_MEM_FOR_RS_ALIGN_CODE and here are the
results.

synthetic testcase from comment 1:

                time, s   maxrss, MB
------------------------------------
before     31     0.279        85      
after      31     0.278        85      
after      63     0.295       100      
after     127     0.356       137      
after     255     0.447       202      
after     511     0.546       331      
after    1023     0.838       655      
after    2047     2.867      2029      
after    4095     5.296      3974      


original cc1plus.s from comment 2:

                time, s   maxrss, MB
------------------------------------
before     31       188       875
after      31       187       876
after      63       193       888
after     127       204       912
after     255       217       963
after     511       236      1071
after    1023       256      1290
after    2047       547      2256
after    4095       906      3742

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