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Message-ID: <201702090015.H7koUGgw%fengguang.wu@intel.com>
Date: Thu, 9 Feb 2017 00:07:54 +0800
From: kbuild test robot <lkp@...el.com>
To: Matt Fleming <matt@...eblueprint.co.uk>
Cc: kbuild-all@...org, Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...nel.org>, linux-kernel@...r.kernel.org,
Matt Fleming <matt@...eblueprint.co.uk>,
Mike Galbraith <umgwanakikbuti@...il.com>,
Morten Rasmussen <morten.rasmussen@....com>,
stable@...r.kernel.org,
Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH] sched/loadavg: Avoid loadavg spikes caused by delayed
NO_HZ accounting
Hi Matt,
[auto build test ERROR on tip/sched/core]
[also build test ERROR on v4.10-rc7 next-20170208]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Matt-Fleming/sched-loadavg-Avoid-loadavg-spikes-caused-by-delayed-NO_HZ-accounting/20170208-224135
config: i386-randconfig-x003-201706 (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All error/warnings (new ones prefixed by >>):
kernel/sched/loadavg.c: In function 'calc_load_exit_idle':
>> kernel/sched/loadavg.c:404:0: error: unterminated argument list invoking macro "if"
}
>> kernel/sched/loadavg.c:220:2: error: expected '(' at end of input
if (time_in_range_open(jiffies, next_window, next_window + 10)
^~
>> kernel/sched/loadavg.c:220:2: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
kernel/sched/loadavg.c:404:0: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
}
>> kernel/sched/loadavg.c:220:2: error: expected declaration or statement at end of input
if (time_in_range_open(jiffies, next_window, next_window + 10)
^~
At top level:
kernel/sched/loadavg.c:100:1: warning: 'calc_load' defined but not used [-Wunused-function]
calc_load(unsigned long load, unsigned long exp, unsigned long active)
^~~~~~~~~
vim +/if +404 kernel/sched/loadavg.c
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 214 *
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 215 * The next window is 'calc_load_update' if we haven't reached it yet,
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 216 * and 'calc_load_update + 10' if we're inside the current window.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 217 */
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 218 next_window = calc_load_update;
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 219
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 @220 if (time_in_range_open(jiffies, next_window, next_window + 10)
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 221 next_window += LOAD_FREQ;
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 222
5ee9e5df kernel/sched/loadavg.c Matt Fleming 2017-02-08 223 this_rq->calc_load_update = next_window;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 224 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 225
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 226 static long calc_load_fold_idle(void)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 227 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 228 int idx = calc_load_read_idx();
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 229 long delta = 0;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 230
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 231 if (atomic_long_read(&calc_load_idle[idx]))
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 232 delta = atomic_long_xchg(&calc_load_idle[idx], 0);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 233
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 234 return delta;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 235 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 236
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 237 /**
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 238 * fixed_power_int - compute: x^n, in O(log n) time
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 239 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 240 * @x: base of the power
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 241 * @frac_bits: fractional bits of @x
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 242 * @n: power to raise @x to.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 243 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 244 * By exploiting the relation between the definition of the natural power
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 245 * function: x^n := x*x*...*x (x multiplied by itself for n times), and
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 246 * the binary encoding of numbers used by computers: n := \Sum n_i * 2^i,
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 247 * (where: n_i \elem {0, 1}, the binary vector representing n),
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 248 * we find: x^n := x^(\Sum n_i * 2^i) := \Prod x^(n_i * 2^i), which is
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 249 * of course trivially computable in O(log_2 n), the length of our binary
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 250 * vector.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 251 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 252 static unsigned long
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 253 fixed_power_int(unsigned long x, unsigned int frac_bits, unsigned int n)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 254 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 255 unsigned long result = 1UL << frac_bits;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 256
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 257 if (n) {
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 258 for (;;) {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 259 if (n & 1) {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 260 result *= x;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 261 result += 1UL << (frac_bits - 1);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 262 result >>= frac_bits;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 263 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 264 n >>= 1;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 265 if (!n)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 266 break;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 267 x *= x;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 268 x += 1UL << (frac_bits - 1);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 269 x >>= frac_bits;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 270 }
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 271 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 272
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 273 return result;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 274 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 275
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 276 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 277 * a1 = a0 * e + a * (1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 278 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 279 * a2 = a1 * e + a * (1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 280 * = (a0 * e + a * (1 - e)) * e + a * (1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 281 * = a0 * e^2 + a * (1 - e) * (1 + e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 282 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 283 * a3 = a2 * e + a * (1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 284 * = (a0 * e^2 + a * (1 - e) * (1 + e)) * e + a * (1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 285 * = a0 * e^3 + a * (1 - e) * (1 + e + e^2)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 286 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 287 * ...
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 288 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 289 * an = a0 * e^n + a * (1 - e) * (1 + e + ... + e^n-1) [1]
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 290 * = a0 * e^n + a * (1 - e) * (1 - e^n)/(1 - e)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 291 * = a0 * e^n + a * (1 - e^n)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 292 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 293 * [1] application of the geometric series:
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 294 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 295 * n 1 - x^(n+1)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 296 * S_n := \Sum x^i = -------------
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 297 * i=0 1 - x
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 298 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 299 static unsigned long
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 300 calc_load_n(unsigned long load, unsigned long exp,
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 301 unsigned long active, unsigned int n)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 302 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 303 return calc_load(load, fixed_power_int(exp, FSHIFT, n), active);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 304 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 305
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 306 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 307 * NO_HZ can leave us missing all per-cpu ticks calling
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 308 * calc_load_account_active(), but since an idle CPU folds its delta into
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 309 * calc_load_tasks_idle per calc_load_account_idle(), all we need to do is fold
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 310 * in the pending idle delta if our idle period crossed a load cycle boundary.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 311 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 312 * Once we've updated the global active value, we need to apply the exponential
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 313 * weights adjusted to the number of cycles missed.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 314 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 315 static void calc_global_nohz(void)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 316 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 317 long delta, active, n;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 318
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 319 if (!time_before(jiffies, calc_load_update + 10)) {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 320 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 321 * Catch-up, fold however many we are behind still
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 322 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 323 delta = jiffies - calc_load_update - 10;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 324 n = 1 + (delta / LOAD_FREQ);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 325
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 326 active = atomic_long_read(&calc_load_tasks);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 327 active = active > 0 ? active * FIXED_1 : 0;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 328
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 329 avenrun[0] = calc_load_n(avenrun[0], EXP_1, active, n);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 330 avenrun[1] = calc_load_n(avenrun[1], EXP_5, active, n);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 331 avenrun[2] = calc_load_n(avenrun[2], EXP_15, active, n);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 332
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 333 calc_load_update += n * LOAD_FREQ;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 334 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 335
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 336 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 337 * Flip the idle index...
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 338 *
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 339 * Make sure we first write the new time then flip the index, so that
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 340 * calc_load_write_idx() will see the new time when it reads the new
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 341 * index, this avoids a double flip messing things up.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 342 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 343 smp_wmb();
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 344 calc_load_idx++;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 345 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 346 #else /* !CONFIG_NO_HZ_COMMON */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 347
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 348 static inline long calc_load_fold_idle(void) { return 0; }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 349 static inline void calc_global_nohz(void) { }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 350
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 351 #endif /* CONFIG_NO_HZ_COMMON */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 352
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 353 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 354 * calc_load - update the avenrun load estimates 10 ticks after the
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 355 * CPUs have updated calc_load_tasks.
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 356 *
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 357 * Called from the global timer code.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 358 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 359 void calc_global_load(unsigned long ticks)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 360 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 361 long active, delta;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 362
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 363 if (time_before(jiffies, calc_load_update + 10))
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 364 return;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 365
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 366 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 367 * Fold the 'old' idle-delta to include all NO_HZ cpus.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 368 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 369 delta = calc_load_fold_idle();
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 370 if (delta)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 371 atomic_long_add(delta, &calc_load_tasks);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 372
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 373 active = atomic_long_read(&calc_load_tasks);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 374 active = active > 0 ? active * FIXED_1 : 0;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 375
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 376 avenrun[0] = calc_load(avenrun[0], EXP_1, active);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 377 avenrun[1] = calc_load(avenrun[1], EXP_5, active);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 378 avenrun[2] = calc_load(avenrun[2], EXP_15, active);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 379
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 380 calc_load_update += LOAD_FREQ;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 381
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 382 /*
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 383 * In case we idled for multiple LOAD_FREQ intervals, catch up in bulk.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 384 */
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 385 calc_global_nohz();
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 386 }
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 387
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 388 /*
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 389 * Called from scheduler_tick() to periodically update this CPU's
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 390 * active count.
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 391 */
3289bdb4 kernel/sched/loadavg.c Peter Zijlstra 2015-04-14 392 void calc_global_load_tick(struct rq *this_rq)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 393 {
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 394 long delta;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 395
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 396 if (time_before(jiffies, this_rq->calc_load_update))
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 397 return;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 398
d60585c5 kernel/sched/loadavg.c Thomas Gleixner 2016-07-12 399 delta = calc_load_fold_active(this_rq, 0);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 400 if (delta)
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 401 atomic_long_add(delta, &calc_load_tasks);
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 402
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 403 this_rq->calc_load_update += LOAD_FREQ;
45ceebf7 kernel/sched/proc.c Paul Gortmaker 2013-04-19 @404 }
:::::: The code at line 404 was first introduced by commit
:::::: 45ceebf77653975815d82fcf7cec0a164215ae11 sched: Factor out load calculation code from sched/core.c --> sched/proc.c
:::::: TO: Paul Gortmaker <paul.gortmaker@...driver.com>
:::::: CC: Ingo Molnar <mingo@...nel.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
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