| sched_ule.c (172293) | sched_ule.c (172308) |
|---|---|
| 1/*- 2 * Copyright (c) 2002-2007, Jeffrey Roberson <jeff@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 22 unchanged lines hidden (view full) --- 31 * 32 * etymology: 33 * ULE is the last three letters in schedule. It owes its name to a 34 * generic user created for a scheduling system by Paul Mikesell at 35 * Isilon Systems and a general lack of creativity on the part of the author. 36 */ 37 38#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2002-2007, Jeffrey Roberson <jeff@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 22 unchanged lines hidden (view full) --- 31 * 32 * etymology: 33 * ULE is the last three letters in schedule. It owes its name to a 34 * generic user created for a scheduling system by Paul Mikesell at 35 * Isilon Systems and a general lack of creativity on the part of the author. 36 */ 37 38#include <sys/cdefs.h> |
| 39__FBSDID("$FreeBSD: head/sys/kern/sched_ule.c 172293 2007-09-22 02:20:14Z jeff $"); | 39__FBSDID("$FreeBSD: head/sys/kern/sched_ule.c 172308 2007-09-24 00:28:54Z jeff $"); |
| 40 41#include "opt_hwpmc_hooks.h" 42#include "opt_sched.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/kdb.h> 47#include <sys/kernel.h> --- 1357 unchanged lines hidden (view full) --- 1405 * Scores greater than this are placed on the normal timeshare queue 1406 * where the priority is partially decided by the most recent cpu 1407 * utilization and the rest is decided by nice value. 1408 * 1409 * The nice value of the process has a linear effect on the calculated 1410 * score. Negative nice values make it easier for a thread to be 1411 * considered interactive. 1412 */ | 40 41#include "opt_hwpmc_hooks.h" 42#include "opt_sched.h" 43 44#include <sys/param.h> 45#include <sys/systm.h> 46#include <sys/kdb.h> 47#include <sys/kernel.h> --- 1357 unchanged lines hidden (view full) --- 1405 * Scores greater than this are placed on the normal timeshare queue 1406 * where the priority is partially decided by the most recent cpu 1407 * utilization and the rest is decided by nice value. 1408 * 1409 * The nice value of the process has a linear effect on the calculated 1410 * score. Negative nice values make it easier for a thread to be 1411 * considered interactive. 1412 */ |
| 1413 score = sched_interact_score(td) - td->td_proc->p_nice; | 1413 score = imax(0, sched_interact_score(td) - td->td_proc->p_nice); |
| 1414 if (score < sched_interact) { 1415 pri = PRI_MIN_REALTIME; 1416 pri += ((PRI_MAX_REALTIME - PRI_MIN_REALTIME) / sched_interact) 1417 * score; 1418 KASSERT(pri >= PRI_MIN_REALTIME && pri <= PRI_MAX_REALTIME, 1419 ("sched_priority: invalid interactive priority %d score %d", 1420 pri, score)); 1421 } else { --- 1230 unchanged lines hidden --- | 1414 if (score < sched_interact) { 1415 pri = PRI_MIN_REALTIME; 1416 pri += ((PRI_MAX_REALTIME - PRI_MIN_REALTIME) / sched_interact) 1417 * score; 1418 KASSERT(pri >= PRI_MIN_REALTIME && pri <= PRI_MAX_REALTIME, 1419 ("sched_priority: invalid interactive priority %d score %d", 1420 pri, score)); 1421 } else { --- 1230 unchanged lines hidden --- |