/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_THREADS_H
#define _LINUX_THREADS_H
/*
* The default limit for the nr of threads is now in
* / proc / sys / kernel / threads - max .
*/
/*
* Maximum supported processors . Setting this smaller saves quite a
* bit of memory . Use nr_cpu_ids instead of this except for static bitmaps .
*/
#ifndef CONFIG_NR_CPUS
/* FIXME: This should be fixed in the arch's Kconfig */
#define CONFIG_NR_CPUS 1
#endif
/* Places which use this should consider cpumask_var_t. */
#define NR_CPUS CONFIG_NR_CPUS
#define MIN_THREADS_LEFT_FOR_ROOT 4
/*
* This controls the default maximum pid allocated to a process
*/
#define PID_MAX_DEFAULT (IS_ENABLED(CONFIG_BASE_SMALL) ? 0 x1000 : 0 x8000)
/*
* A maximum of 4 million PIDs should be enough for a while .
* [ NOTE : PID / TIDs are limited to 2 ^ 30 ~ = 1 billion , see FUTEX_TID_MASK . ]
*/
#define PID_MAX_LIMIT (IS_ENABLED(CONFIG_BASE_SMALL) ? PAGE_SIZE * 8 : \
(sizeof (long ) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT))
/*
* Define a minimum number of pids per cpu . Heuristically based
* on original pid max of 32 k for 32 cpus . Also , increase the
* minimum settable value for pid_max on the running system based
* on similar defaults . See kernel / pid . c : pid_idr_init ( ) for details .
*/
#define PIDS_PER_CPU_DEFAULT 1024
#define PIDS_PER_CPU_MIN 8
#endif
Messung V0.5 in Prozent C=85 H=100 G=92
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