kern/61691: very bad performance of realloc()/brk()
phk at phk.freebsd.dk
Fri Jan 23 12:51:49 PST 2004
In message <20040123152035.GA2311 at asura.bsd>, Radim Kolar writes:
>> You seem to be confused as to what responsibilities the programmer
>> has when it comes to practicing sensible memory management.
>I have run some benchmarks for you. There are doing 32 times realloc() in
>1 MB chunks. I don't think that this is example of bad programming
>practice. The major problem is that realloc() copies data while Linux
No, as I said, the problem is you use realloc the wrong way.
You should not
For whatever value of 32M 99% of your data fit in.
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