| 1 | /* |
| 2 | * blktrace output analysis: generate a timeline & gather statistics |
| 3 | * |
| 4 | * Copyright (C) 2006 Alan D. Brunelle <Alan.Brunelle@hp.com> |
| 5 | * |
| 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. |
| 10 | * |
| 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. |
| 15 | * |
| 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 |
| 19 | * |
| 20 | */ |
| 21 | #include "globals.h" |
| 22 | |
| 23 | static void handle_queue(struct io *q_iop) |
| 24 | { |
| 25 | seeki_add(q_iop->dip->q2q_handle, q_iop); |
| 26 | update_qregion(&all_regions, q_iop->t.time); |
| 27 | dip_update_q(q_iop->dip, q_iop); |
| 28 | pip_update_q(q_iop); |
| 29 | if (remapper_dev(q_iop->t.device)) |
| 30 | update_lq(&last_q, &all_avgs.q2q_dm, q_iop->t.time); |
| 31 | else { |
| 32 | update_q_histo(q_iop->t.bytes); |
| 33 | update_lq(&last_q, &all_avgs.q2q, q_iop->t.time); |
| 34 | } |
| 35 | |
| 36 | q_iop->i_time = q_iop->g_time = q_iop->c_time = q_iop->m_time = |
| 37 | q_iop->d_time = (__u64)-1; |
| 38 | q_iop->dip->n_qs++; |
| 39 | |
| 40 | q_iop->dip->t_act_q += q_iop->dip->n_act_q; |
| 41 | q_iop->dip->n_act_q++; |
| 42 | } |
| 43 | |
| 44 | void trace_queue(struct io *q_iop) |
| 45 | { |
| 46 | if (q_iop->t.bytes == 0) |
| 47 | return; |
| 48 | |
| 49 | if (io_setup(q_iop, IOP_Q)) |
| 50 | handle_queue(q_iop); |
| 51 | else |
| 52 | io_release(q_iop); |
| 53 | } |