On Sun, 15 Feb 2009, Matt Mackall wrote: > On Sun, 2009-02-15 at 17:00 -0800, Andrew Morton wrote: > > On Sun, 15 Feb 2009 17:49:41 -0600 Matt Mackall <mpm@xxxxxxxxxxx> wrote: > > > The whole concept is quite hacky and nasty, isn't it?. > > It is, which is part of why we were trying to kill it. The primary users > were thing growing buffers ala realloc. So we were pushing to change the > callers to just do a realloc. But IPSEC doesn't fit well into that mold. > > The fundamental problem here for networking is that 1500 is not very > close to a power of two and just about everything in the VM wants it to > be. If we could get SKBs fitting more nicely in memory, I think it would > cease to be a concern. Does it help to remind that 4 KiB - 2 * 1500 = 1096 \approx 1024? (hmm, the difference is 72 \approx 64)? If 1500 is so common as an allocation size, it may make sense to start special-casing it... With kind regards, Geert Uytterhoeven Software Architect Sony Techsoft Centre Europe The Corporate Village · Da Vincilaan 7-D1 · B-1935 Zaventem · Belgium Phone: +32 (0)2 700 8453 Fax: +32 (0)2 700 8622 E-mail: Geert.Uytterhoeven@xxxxxxxxxxx Internet: http://www.sony-europe.com/ A division of Sony Europe (Belgium) N.V. VAT BE 0413.825.160 · RPR Brussels Fortis · BIC GEBABEBB · IBAN BE41293037680010 -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
