Annotation of sys/nfs/nfsrtt.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: nfsrtt.h,v 1.6 2003/06/02 23:28:20 millert Exp $ */
! 2: /* $NetBSD: nfsrtt.h,v 1.4 1996/02/18 11:54:07 fvdl Exp $ */
! 3:
! 4: /*
! 5: * Copyright (c) 1992, 1993
! 6: * The Regents of the University of California. All rights reserved.
! 7: *
! 8: * This code is derived from software contributed to Berkeley by
! 9: * Rick Macklem at The University of Guelph.
! 10: *
! 11: * Redistribution and use in source and binary forms, with or without
! 12: * modification, are permitted provided that the following conditions
! 13: * are met:
! 14: * 1. Redistributions of source code must retain the above copyright
! 15: * notice, this list of conditions and the following disclaimer.
! 16: * 2. Redistributions in binary form must reproduce the above copyright
! 17: * notice, this list of conditions and the following disclaimer in the
! 18: * documentation and/or other materials provided with the distribution.
! 19: * 3. Neither the name of the University nor the names of its contributors
! 20: * may be used to endorse or promote products derived from this software
! 21: * without specific prior written permission.
! 22: *
! 23: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 24: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 25: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 26: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 27: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 28: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 29: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 30: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 31: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 32: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 33: * SUCH DAMAGE.
! 34: *
! 35: * @(#)nfsrtt.h 8.2 (Berkeley) 3/30/95
! 36: */
! 37:
! 38:
! 39: #ifndef _NFS_NFSRTT_H_
! 40: #define _NFS_NFSRTT_H_
! 41:
! 42: /*
! 43: * Definitions for performance monitor.
! 44: * The client and server logging are turned on by setting the global
! 45: * constant "nfsrtton" to 1.
! 46: */
! 47: #define NFSRTTLOGSIZ 128
! 48:
! 49: /*
! 50: * Circular log of client side rpc activity. Each log entry is for one
! 51: * rpc filled in upon completion. (ie. in order of completion)
! 52: * The "pos" is the table index for the "next" entry, therefore the
! 53: * list goes from nfsrtt.rttl[pos] --> nfsrtt.rttl[pos - 1] in
! 54: * chronological order of completion.
! 55: */
! 56: struct nfsrtt {
! 57: int pos; /* Position in array for next entry */
! 58: struct rttl {
! 59: int proc; /* NFS procedure number */
! 60: int rtt; /* Measured round trip time */
! 61: int rto; /* Round Trip Timeout */
! 62: int sent; /* # rpcs in progress */
! 63: int cwnd; /* Send window */
! 64: int srtt; /* Ave Round Trip Time */
! 65: int sdrtt; /* Ave mean deviation of RTT */
! 66: fsid_t fsid; /* Fsid for mount point */
! 67: struct timeval tstamp; /* Timestamp of log entry */
! 68: } rttl[NFSRTTLOGSIZ];
! 69: };
! 70:
! 71: /*
! 72: * And definitions for server side performance monitor.
! 73: * The log organization is the same as above except it is filled in at the
! 74: * time the server sends the rpc reply.
! 75: */
! 76:
! 77: /*
! 78: * Bits for the flags field.
! 79: */
! 80: #define DRT_TCP 0x02 /* Client used TCP transport */
! 81: #define DRT_CACHEREPLY 0x04 /* Reply was from recent request cache */
! 82: #define DRT_CACHEDROP 0x08 /* Rpc request dropped, due to recent reply */
! 83: #define DRT_NFSV3 0x10 /* Rpc used NFS Version 3 */
! 84:
! 85: /*
! 86: * Server log structure
! 87: * NB: ipadr == INADDR_ANY indicates a client using a non IP protocol.
! 88: * (ISO perhaps?)
! 89: */
! 90: struct nfsdrt {
! 91: int pos; /* Position of next log entry */
! 92: struct drt {
! 93: int flag; /* Bits as defined above */
! 94: int proc; /* NFS procedure number */
! 95: u_int32_t ipadr; /* IP address of client */
! 96: int resptime; /* Response time (usec) */
! 97: struct timeval tstamp; /* Timestamp of log entry */
! 98: } drt[NFSRTTLOGSIZ];
! 99: };
! 100:
! 101: #endif
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