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112 commits

Author SHA1 Message Date
Stefan Lankes
c90a533521 only by a context switch, the FPU registers are saved in the task context 2011-10-07 16:07:29 +02:00
Marian Ohligs
fde6b46203 filedescriptor redesign, fix close issue in telnet 2011-09-28 22:03:54 +02:00
Stefan Lankes
42c69cfcfc add rlogind 
via 'telnet hostname 4211' is it possible to establish a connection to a mshell
 2011-09-25 20:41:03 +02:00
Stefan Lankes
d7dc5ec9b7 fine tuning of our load balancer 2011-09-22 11:01:33 +02:00
Stefan Lankes
670b3f850c add first version of our load balancer 2011-09-22 09:48:40 +02:00
Stefan Lankes
ef3ab5b836 first steps to realize load balancing 2011-09-20 14:37:28 +02:00
Stefan Lankes
c2ec2800bc determine the 1, 5 and 15 minute load 2011-09-20 08:56:58 +02:00
Stefan Lankes
c08125c3ad avoid races by adding a new task 2011-09-19 19:42:27 +02:00
Stefan Lankes
810c6db0a8 add some debug messages... by the initialization of the file descriptors, we avoid a race 2011-09-19 06:37:55 -07:00
Stefan Lankes
a1f1d3e572 minor optimizations 2011-09-19 10:10:02 +02:00
Stefan Lankes
0709d365a1 remove some compiler warnings 2011-09-15 21:49:56 +02:00
Marian Ohligs
4e0d89e67a - tidy up memory on do_exit 2011-09-15 08:19:03 +02:00
Marian Ohligs
39396f1188 - only initialize the fildes_t in usertasks, on create_user_task 2011-09-14 16:25:29 +02:00
Marian Ohligs
e572d1c502 Merge branch 'master' into ohligs 
Conflicts:
	kernel/init.c
	kernel/tests.c
 2011-09-09 21:23:15 +02:00
Stefan Lankes
c6339bfd2d by leaving the interrupt handler, we check if an urgent task is ready 
if yes, the kernel switchs to this task
 2011-09-06 06:46:52 -07:00
Stefan Lankes
27e652f81d if a task exists with a higher priority, we start a rescheduling in check_workqueues. 2011-09-02 13:57:11 -07:00
Stefan Lankes
e6fb99beb4 add inline assembler functions to determine the MSB and LSB 2011-09-01 13:31:41 -07:00
Marian Ohligs
ed5dba2672 Merge branch 'master' into ohligs 
Conflicts:
	kernel/tests.c
 2011-08-29 14:52:23 +02:00
Stefan Lankes
426c06193b remove bug in the timer queue 2011-08-28 23:56:29 -07:00
Stefan Lankes
81d384b1b0 minor changes in the code style 2011-08-28 08:54:18 -07:00
Stefan Lankes
4fe2562839 fine tuning by using the irq fast lane 2011-08-28 01:24:28 -07:00
Stefan Lankes
771db80f26 remove merge error => scheduler has to call "finish_task_switch" 2011-08-27 06:57:21 -07:00
Marian Ohligs
b3be0861f9 Merge branch 'master' into ohligs 2011-08-27 12:11:53 +02:00
Stefan Lankes
7e3c06f47b if required, the waken task will remove from the timer queue 2011-08-26 21:55:16 +02:00
Marian Ohligs
e9805be005 Merge branch 'master' into ohligs 
Conflicts:
	kernel/tasks.c
	kernel/tests.c
 2011-08-25 12:15:36 +02:00
Stefan Lankes
1e1e77351a first approach to determine the cpu load 2011-08-24 09:32:36 +02:00
Stefan Lankes
35621d72d1 first try to realize task stealing 2011-08-18 12:16:31 +02:00
Stefan Lankes
93257508ee wakeup a blocked task on the core, which the task used during the last time slice 2011-08-17 15:09:59 +02:00
Stefan Lankes
296e8e98f4 the idle priority doesn't longer possess an own runqueue 
only the idle task uses this priority class
 2011-08-17 14:49:12 +02:00
Stefan Lankes
4c9855c83a redesign of the scheduler, defining of a runqueue per core 
=> Currently, we work stealing isn't supported
 2011-08-17 13:51:19 +02:00
Marian Ohligs
27b7c6aa6e add networkI/O (unstable) 2011-08-10 18:56:40 +02:00
Marian Ohligs
5c7e9f38ec Merge branch 'master' into ohligs 
Conflicts:
	.gitignore
	kernel/syscall.c
	kernel/tasks.c
	kernel/tests.c
	newlib/examples/Makefile
 2011-08-10 16:57:17 +02:00
Stefan Lankes
20b074d81c add additional error messages 2011-08-10 09:55:59 -07:00
Stefan Lankes
5d9f361174 add system calls to map the user-level socket library to LwIP sockets 2011-08-10 08:15:53 +02:00
Marian Ohligs
cdc6707852 Merge branch 'master' into ohligs 
- one more bug: block_task is missing

Conflicts:
	include/metalsvm/tasks_types.h
	kernel/main.c
	kernel/tasks.c
 2011-08-06 17:51:48 +02:00
Stefan Lankes
a179ded21b redesign of the timers, support of timeouts in mailboxes and semaphores 2011-08-06 15:55:34 +02:00
Stefan Lankes
452aa3b1d1 cosmetic changes and add some scheduling statistics 2011-08-03 19:37:05 +02:00
Marian Ohligs
8fcf9514ca Merge branch 'master' into ohligs 2011-08-03 16:56:55 +02:00
Stefan Lankes
22dab59699 minor changes in the scheduler routine to relalize a fair round-robin scheduling 2011-08-03 15:10:58 +02:00
Marian Ohligs
032bba3a95 - some chmod changes 2011-08-02 15:58:20 +02:00
Marian Ohligs
c3d912bee1 - minor optimization in main.c and tasks.c 2011-08-02 13:01:28 +02:00
Marian Ohligs
c7012f7bc0 - enable flags O_RDONLY O_WRONLY and O_RDWR 2011-08-02 11:57:14 +02:00
Marian Ohligs
3bc6844833 Merge branch 'master' into ohligs 2011-08-02 11:14:39 +02:00
Stefan Lankes
026d5e264c use table_lock to avoid GPs during a task switch 2011-08-02 10:24:17 +02:00
Stefan Lankes
744abc36c8 minor optimization on single core systems 2011-08-02 07:07:16 +02:00
Marian Ohligs
429c2a99d7 Merge branch 'master' into ohligs 2011-08-01 22:35:04 +02:00
Stefan Lankes
d5bfc4f28c avoid races on SMP systems 
=> signalizes with a new flag, that a task switch is finished
 2011-08-01 22:01:39 +02:00
Marian Ohligs
94a98c5950 Merge branch 'master' into ohligs 
Conflicts:
	kernel/tasks.c
 2011-07-30 19:21:25 +02:00
Stefan Lankes
f76f4ac70d fix wrong initialization of current_task 2011-07-30 17:36:21 +02:00
Marian Ohligs
55e0e971be merge master 2011-07-27 10:28:01 +02:00