1 #!/usr/sbin/dtrace -s 2 /* 3 * rwbytype.d - read/write bytes by vnode type. 4 * Written using DTrace (Solaris 10 3/05). 5 * 6 * This program identifies the vnode type of read/write activity - whether 7 * that is for regular files, sockets, character special devices, etc. 8 * 9 * $Id: rwbytype.d,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 10 * 11 * USAGE: rwbytype.d # hit Ctrl-C to end sample 12 * 13 * FIELDS: 14 * PID number of rwbytype 15 * CMD process name 16 * VTYPE vnode type (describes I/O type) 17 * DIR direction (Read/Write) 18 * BYTES bytes transferred 19 * 20 * COPYRIGHT: Copyright (c) 2005, 2006 Brendan Gregg. 21 * 22 * CDDL HEADER START 23 * 24 * The contents of this file are subject to the terms of the 25 * Common Development and Distribution License, Version 1.0 only 26 * (the "License"). You may not use this file except in compliance 27 * with the License. 28 * 29 * You can obtain a copy of the license at Docs/cddl1.txt 30 * or http://www.opensolaris.org/os/licensing. 31 * See the License for the specific language governing permissions 32 * and limitations under the License. 33 * 34 * CDDL HEADER END 35 * 36 * 18-Oct-2005 Brendan Gregg Created this. 37 * 20-Apr-2006 " " Last update. 38 */ 39 40 #pragma D option quiet 41 42 typedef struct vtype2str { 43 string code; 44 }; 45 46 translator struct vtype2str < int T > { 47 /* the order has been picked for performance reasons */ 48 code = 49 T == 1 ? "reg" : 50 T == 9 ? "sock" : 51 T == 4 ? "chr" : 52 T == 6 ? "fifo" : 53 T == 8 ? "proc" : 54 T == 2 ? "dir" : 55 T == 3 ? "blk" : 56 T == 5 ? "lnk" : 57 T == 7 ? "door" : 58 T == 10 ? "port" : 59 T == 11 ? "bad" : "non"; 60 }; 61 62 dtrace:::BEGIN 63 { 64 printf("Tracing... Hit Ctrl-C to end.\n"); 65 } 66 67 fbt::fop_read:entry, 68 fbt::fop_write:entry 69 { 70 self->type = xlate <struct vtype2str *>(args[0]->v_type)->code; 71 self->size = args[1]->uio_resid; 72 self->uiop = args[1]; 73 } 74 75 fbt::fop_read:return 76 /self->uiop/ 77 { 78 this->resid = self->uiop->uio_resid; 79 @bytes[pid, execname, self->type, "R"] = sum(self->size - this->resid); 80 self->type = 0; 81 self->size = 0; 82 self->uiop = 0; 83 } 84 85 /* this is delibrately redundant code for performance reasons */ 86 fbt::fop_write:return 87 /self->uiop/ 88 { 89 this->resid = self->uiop->uio_resid; 90 @bytes[pid, execname, self->type, "W"] = sum(self->size - this->resid); 91 self->type = 0; 92 self->size = 0; 93 self->uiop = 0; 94 } 95 96 dtrace:::END 97 { 98 printf("%-6s %-16s %6s %4s %9s\n", 99 "PID", "CMD", "VTYPE", "DIR", "BYTES"); 100 printa("%-6d %-16s %6s %4s %@9d\n", @bytes); 101 } 102