Date: 03 Apr 98 08:21:25 +0330 From: "Muthu" <MOLAGAPP.IN.oracle.com.ofcmail@in.oracle.com> To: hackers@FreeBSD.ORG Cc: GLAKSHMI.IN.oracle.com.ofcmail@in.oracle.com, JTHERRAT.IN.oracle.com.ofcmail@in.oracle.com Subject: bcopy implementation Message-ID: <199804030436.XAA04721@dwarpal.in.oracle.com>
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Hi, I took a look at bcopy implementation inside the kernel(FreeBSD 2.2.5). If the number of bytes to copy is greater than 1024, it uses the floating point unit implementation else generic bcopy. This kind of implementation is not used in libc. Only generic bcopy is used in all cases. On the assumption, that the system has pentium processor, the bcopy implementation of libc can be changed to floating point implementation as in kernel. One reason of not changing implementation of bcopy in libc may be that applications will run at different speed on different processor. On pentium it will run faster and on 80386 it will run slow. Is there any other valid reason of not implementing this method in libc? Regards, Muthu. O.L. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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