2 * blktrace output analysis: generate a timeline & gather statistics
4 * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 static void handle_g(struct io *g_iop)
29 q_iop = dip_find_sec(g_iop->dip, IOP_Q, g_iop->t.sector);
31 q_iop->g_time = g_iop->t.time;
32 update_q2g(q_iop, tdelta(q_iop->t.time, g_iop->t.time));
33 if (q_iop->s_time != 0)
34 update_s2g(q_iop, tdelta(q_iop->s_time, g_iop->t.time));
38 static void handle_s(struct io *s_iop)
40 struct io *q_iop = dip_find_sec(s_iop->dip, IOP_Q, s_iop->t.sector);
43 q_iop->s_time = s_iop->t.time;
46 static void handle_i(struct io *i_iop)
48 struct io *q_iop = dip_find_sec(i_iop->dip, IOP_Q, i_iop->t.sector);
51 q_iop->i_time = i_iop->t.time;
52 if (q_iop->g_time != (__u64)-1)
53 update_g2i(q_iop, tdelta(q_iop->g_time, i_iop->t.time));
57 static void handle_m(struct io *m_iop)
63 q_iop = dip_find_sec(m_iop->dip, IOP_Q, m_iop->t.sector);
65 q_iop->m_time = m_iop->t.time;
66 update_q2m(q_iop, tdelta(q_iop->t.time, m_iop->t.time));
69 if (m_iop->dip->n_act_q != 0)
70 m_iop->dip->n_act_q--;
73 void trace_sleeprq(struct io *s_iop)
75 if (s_iop->t.bytes == 0)
77 if (io_setup(s_iop, IOP_S))
82 void trace_getrq(struct io *g_iop)
84 if (g_iop->t.bytes == 0)
86 if (io_setup(g_iop, IOP_G))
91 void trace_insert(struct io *i_iop)
93 if (i_iop->t.bytes == 0)
95 if (io_setup(i_iop, IOP_I))
100 void trace_merge(struct io *m_iop)
102 if (m_iop->t.bytes == 0)
104 if (io_setup(m_iop, IOP_M))