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| author | brian <brian@FreeBSD.org> | 1999-12-20 20:29:51 +0000 |
|---|---|---|
| committer | brian <brian@FreeBSD.org> | 1999-12-20 20:29:51 +0000 |
| commit | ff8174b1b3e9f7d40f556d9af0d8168f7b81cefa (patch) | |
| tree | 0f1b79a384d061f785330452ed26aef1497aca77 /usr.sbin/ppp/vjcomp.c | |
| parent | 86f30d4f38c1b3bdc30e15482e3d749c9ad5f159 (diff) | |
| download | FreeBSD-src-ff8174b1b3e9f7d40f556d9af0d8168f7b81cefa.zip FreeBSD-src-ff8174b1b3e9f7d40f556d9af0d8168f7b81cefa.tar.gz | |
Implement mbuf allocation internally by maintaining 8 buckets of
different sized mbufs, and mallocing them in chunks of 20 mbufs
at a time.
This improves back-to-back throughput by between 7 and 8%
Diffstat (limited to 'usr.sbin/ppp/vjcomp.c')
| -rw-r--r-- | usr.sbin/ppp/vjcomp.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/usr.sbin/ppp/vjcomp.c b/usr.sbin/ppp/vjcomp.c index 5c99362..e257623 100644 --- a/usr.sbin/ppp/vjcomp.c +++ b/usr.sbin/ppp/vjcomp.c @@ -105,7 +105,6 @@ VjUncompressTcp(struct ipcp *ipcp, struct mbuf *bp, u_char type) { u_char *bufp; int len, olen, rlen; - struct mbuf *nbp; u_char work[MAX_HDR + MAX_VJHEADER]; /* enough to hold TCP/IP header */ bp = m_pullup(bp); @@ -144,11 +143,11 @@ VjUncompressTcp(struct ipcp *ipcp, struct mbuf *bp, u_char type) } len -= olen; len += rlen; - nbp = m_get(len, MB_VJIN); - memcpy(MBUF_CTOP(nbp), bufp, len); + + bp = m_prepend(bp, bufp, len, 0); m_settype(bp, MB_VJIN); - nbp->m_next = bp; - return nbp; + + return bp; } static struct mbuf * |
