linguini1 opened a new pull request, #15876:
URL: https://github.com/apache/nuttx/pull/15876
## Summary
Introduces LAZYFPU by enabling LSPEN and ASPEN for lazy stacking and
automatic state preservation. FPU registers are no longer stored in XCPT
registers (HW and SW) if LAZY FPU is enabled.
Discussed in #15826
## Impact
This reduces context switching overhead in some contexts where the FPU is
used. This feature is implemented for all ARMv7-M chips, however I have only
added `select ARCH_HAVE_LAZYFPU` for the STM32H7 chips that are single ARMv7-M
cores as I do not have an exhaustive list of all ARMv7-M chips to test on.
## Testing
Performed on an STM32H743 chip. I have increased the number of FPU loops to
25 and reduced the FPU thread stack size to 2048.
Here is the results of `ostest` when LAZYFPU is disabled:
```console
nsh> ostest
stdio_test: write fd=1
stdio_test: Standard I/O Check: printf
stdio_test: write fd=2
ostest_main: putenv(Variable1=BadValue3)
ostest_main: setenv(Variable1, GoodValue1, TRUE)
ostest_main: setenv(Variable2, BadValue1, FALSE)
ostest_main: setenv(Variable2, GoodValue2, TRUE)
ostest_main: setenv(Variable3, GoodValue3, FALSE)
ostest_main: setenv(Variable3, BadValue2, FALSE)
show_variable: Variable=Variable1 has value=GoodValue1
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
ostest_main: Started user_main at PID=7
user_main: Begin argument test
user_main: Started with argc=5
user_main: argv[0]="ostest"
user_main: argv[1]="Arg1"
user_main: argv[2]="Arg2"
user_main: argv[3]="Arg3"
user_main: argv[4]="Arg4"
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 69720
uordblks a3f0 a3f0
fordblks 69b30 69b30
user_main: getopt() test
getopt(): Simple test
getopt(): Invalid argument
getopt(): Missing optional argument
getopt_long(): Simple test
getopt_long(): No short options
getopt_long(): Argument for --option=argument
getopt_long(): Invalid long option
getopt_long(): Mixed long and short options
getopt_long(): Invalid short option
getopt_long(): Missing optional arguments
getopt_long_only(): Mixed long and short options
getopt_long_only(): Single hyphen long options
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 69720
uordblks a3f0 a3f0
fordblks 69b30 69b30
user_main: libc tests
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 69720
uordblks a3f0 a3f0
fordblks 69b30 69b30
show_variable: Variable=Variable1 has value=GoodValue1
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
show_variable: Variable=Variable1 has no value
show_variable: Variable=Variable2 has value=GoodValue2
show_variable: Variable=Variable3 has value=GoodValue3
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 4
mxordblk 69720 69720
uordblks a3f0 a3d0
fordblks 69b30 69b50
show_variable: Variable=Variable1 has no value
show_variable: Variable=Variable2 has no value
show_variable: Variable=Variable3 has no value
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 3
mxordblk 69720 69720
uordblks a3d0 a358
fordblks 69b50 69bc8
user_main: setvbuf test
setvbuf_test: Test NO buffering
setvbuf_test: Using NO buffering
setvbuf_test: Test default FULL buffering
setvbuf_test: Using default FULL buffering
setvbuf_test: Test FULL buffering, buffer size 64
setvbuf_test: Using FULL buffering, buffer size 64
setvbuf_test: Test FULL buffering, pre-allocated buffer
setvbuf_test: Using FULL buffering, pre-allocated buffer
setvbuf_test: Test LINE buffering, buffer size 64
setvbuf_test: Using LINE buffering, buffer size 64
setvbuf_test: Test FULL buffering, pre-allocated buffer
setvbuf_test: Using FULL buffering, pre-allocated buffer
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 69720
uordblks a358 a358
fordblks 69bc8 69bc8
user_main: /dev/null test
dev_null: Read 0 bytes from /dev/null
dev_null: Wrote 1024 bytes to /dev/null
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 69720
uordblks a358 a358
fordblks 69bc8 69bc8
user_main: FPU test
Starting task FPU#1
fpu_test: Started task FPU#1 at PID=8
FPU#1: pass 1
Starting task FPU#2
fpu_test: Started task FPU#2 at PID=9
FPU#2: pass 1
FPU#1: pass 2
FPU#2: pass 2
FPU#1: pass 3
FPU#2: pass 3
FPU#1: pass 4
FPU#2: pass 4
FPU#1: pass 5
FPU#2: pass 5
FPU#1: pass 6
FPU#2: pass 6
FPU#1: pass 7
FPU#2: pass 7
FPU#1: pass 8
FPU#2: pass 8
FPU#1: pass 9
FPU#2: pass 9
FPU#1: pass 10
FPU#2: pass 10
FPU#1: pass 11
FPU#2: pass 11
FPU#1: pass 12
FPU#2: pass 12
FPU#1: pass 13
FPU#2: pass 13
FPU#1: pass 14
FPU#2: pass 14
FPU#1: pass 15
FPU#2: pass 15
FPU#1: pass 16
FPU#2: pass 16
FPU#1: pass 17
FPU#2: pass 17
FPU#1: pass 18
FPU#2: pass 18
FPU#1: pass 19
FPU#2: pass 19
FPU#1: pass 20
FPU#2: pass 20
FPU#1: pass 21
FPU#2: pass 21
FPU#1: pass 22
FPU#2: pass 22
FPU#1: pass 23
FPU#2: pass 23
FPU#1: pass 24
FPU#2: pass 24
FPU#1: pass 25
FPU#2: pass 25
FPU#1: Succeeded
FPU#2: Succeeded
fpu_test: Returning
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 5
mxordblk 69720 67f40
uordblks a358 b368
fordblks 69bc8 68bb8
user_main: task_restart test
Test task_restart()
restart_main: setenv(VarName, VarValue, TRUE)
restart_main: Started restart_main at PID=10
restart_main: Started with argc=4
restart_main: argv[0]="ostest"
restart_main: argv[1]="This is argument 1"
restart_main: argv[2]="Argument 2 here"
restart_main: argv[3]="Lastly, the 3rd argument"
restart_main: Variable=VarName has value=VarValue
restart_main: I am still here
restart_main: I am still here
restart_main: Started restart_main at PID=10
restart_main: Started with argc=4
restart_main: argv[0]="ostest"
restart_main: argv[1]="This is argument 1"
restart_main: argv[2]="Argument 2 here"
restart_main: argv[3]="Lastly, the 3rd argument"
restart_main: Variable=VarName has value=VarValue
restart_main: Started with argc=4
restart_main: argv[0]="ostest"
restart_main: argv[1]="This is argument 1"
restart_main: argv[2]="Argument 2 here"
restart_main: argv[3]="Lastly, the 3rd argument"
restart_main: Variable=VarName has value=VarValue
restart_main: Exiting
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 5 3
mxordblk 67f40 67330
uordblks b368 c780
fordblks 68bb8 677a0
user_main: waitpid test
Test waitpid()
waitpid_start_child: Started waitpid_main at PID=11
waitpid_main: PID 11 Started
waitpid_start_child: Started waitpid_main at PID=12
waitpid_main: PID 12 Started
waitpid_start_child: Started waitpid_main at PID=13
waitpid_main: PID 13 Started
waitpid_test: Waiting for PID=11 with waitpid()
waitpid_main: PID 11 exitting with result=14
waitpid_test: PID 11 waitpid succeeded with stat_loc=0e00
waitpid_last: Waiting for PID=13 with waitpid()
waitpid_main: PID 12 exitting with result=14
waitpid_main: PID 13 exitting with result=14
waitpid_last: PASS: PID 13 waitpid succeeded with stat_loc=0e00
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 5
mxordblk 67330 62b50
uordblks c780 10790
fordblks 677a0 63790
user_main: mutex test
Initializing mutex
Starting thread 1
Starting thread 2
Thread1 Thread2
Loops 32 32
Errors 0 0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 5 3
mxordblk 62b50 68f18
uordblks 10790 ac60
fordblks 63790 692c0
user_main: timed mutex test
mutex_test: Initializing mutex
mutex_test: Starting thread
pthread: Started
pthread: Waiting for lock or timeout
mutex_test: Unlocking
pthread: Got the lock
pthread: Waiting for lock or timeout
pthread: Got the timeout. Terminating
mutex_test: PASSED
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 68f18 68f18
uordblks ac60 ac60
fordblks 692c0 692c0
user_main: cancel test
cancel_test: Test 1a: Normal Cancellation
cancel_test: Starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
cancel_test: Canceling thread
cancel_test: Joining
cancel_test: waiter exited with result=0xffffffff
cancel_test: PASS thread terminated with PTHREAD_CANCELED
cancel_test: Test 2: Asynchronous Cancellation
... Skipped
cancel_test: Test 3: Cancellation of detached thread
cancel_test: Re-starting thread
restart_thread: Destroying cond
restart_thread: Destroying mutex
restart_thread: Re-starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
cancel_test: Canceling thread
cancel_test: Joining
cancel_test: PASS pthread_join failed with status=ESRCH
cancel_test: Test 5: Non-cancelable threads
cancel_test: Re-starting thread (non-cancelable)
restart_thread: Destroying cond
restart_thread: Destroying mutex
restart_thread: Re-starting thread
start_thread: Initializing mutex
start_thread: Initializing cond
start_thread: Starting thread
start_thread: Yielding
sem_waiter: Taking mutex
sem_waiter: Starting wait for condition
sem_waiter: Setting non-cancelable
cancel_test: Canceling thread
cancel_test: Joining
sem_waiter: Releasing mutex
sem_waiter: Setting cancelable
cancel_test: waiter exited with result=0xffffffff
cancel_test: PASS thread terminated with PTHREAD_CANCELED
cancel_test: Test 6: Cancel message queue wait
cancel_test: Starting thread (cancelable)
Skipped
cancel_test: Test 7: Cancel signal wait
cancel_test: Starting thread (cancelable)
Skipped
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 68f18 67718
uordblks ac60 c460
fordblks 692c0 67ac0
user_main: robust test
robust_test: Initializing mutex
robust_test: Starting thread
robust_waiter: Taking mutex
robust_waiter: Exiting with mutex
robust_test: Take the lock again
robust_test: Make the mutex consistent again.
robust_test: Take the lock again
robust_test: Joining
robust_test: waiter exited with result=0
robust_test: Test complete with nerrors=0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 67718 67718
uordblks c460 c460
fordblks 67ac0 67ac0
user_main: semaphore test
sem_test: Initializing semaphore to 0
sem_test: Starting waiter thread 1
sem_test: Set thread 1 priority to 191
waiter_func: Thread 1 Started
sem_test: Starting waiter thread 2
waiter_func: Thread 1 initial semaphore value = 0
sem_test: Set thread 2 priority to 128
waiter_func: Thread 1 waiting on semaphore
waiter_func: Thread 2 Started
waiter_func: Thread 2 initial semaphore value = -1
waiter_func: Thread 2 waiting on semaphore
sem_test: Starting poster thread 3
sem_test: Set thread 3 priority to 64
poster_func: Thread 3 started
poster_func: Thread 3 semaphore value = -2
poster_func: Thread 3 posting semaphore
waiter_func: Thread 1 awakened
waiter_func: Thread 1 new semaphore value = -1
waiter_func: Thread 1 done
poster_func: Thread 3 new semaphore value = -1
poster_func: Thread 3 semaphore value = -1
poster_func: Thread 3 posting semaphore
waiter_func: Thread 2 awakened
poster_func: Thread 3 new semaphore value = 0
waiter_func: Thread 2 new semaphore value = 0
poster_func: Thread 3 done
waiter_func: Thread 2 done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 4
mxordblk 67718 67f08
uordblks c460 b530
fordblks 67ac0 689f0
user_main: timed semaphore test
semtimed_test: Initializing semaphore to 0
semtimed_test: Waiting for two second timeout
semtimed_test: PASS: first test returned timeout
BEFORE: (104 sec, 760000000 nsec)
AFTER: (106 sec, 770000000 nsec)
semtimed_test: Starting poster thread
semtimed_test: Set thread 1 priority to 191
semtimed_test: Starting poster thread 3
semtimed_test: Set thread 3 priority to 64
semtimed_test: Waiting for two second timeout
poster_func: Waiting for 1 second
poster_func: Posting
semtimed_test: PASS: sem_timedwait succeeded
BEFORE: (106 sec, 770000000 nsec)
AFTER: (107 sec, 780000000 nsec)
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 3
mxordblk 67f08 68f18
uordblks b530 ac60
fordblks 689f0 692c0
user_main: condition variable test
cond_test: Initializing mutex
cond_test: Initializing cond
cond_test: Starting waiter
cond_test: Set thread 1 priority to 128
waiter_thread: Started
cond_test: Starting signaler
cond_test: Set thread 2 priority to 64
thread_signaler: Started
thread_signaler: Terminating
cond_test: signaler terminated, now cancel the waiter
cond_test: Waiter Signaler
cond_test: Loops 32 32
cond_test: Errors 0 0
cond_test:
cond_test: 0 times, waiter did not have to wait for data
cond_test: 0 times, data was already available when the signaler run
cond_test: 0 times, the waiter was in an unexpected state when the signaler
ran
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 4
mxordblk 68f18 68710
uordblks ac60 ac60
fordblks 692c0 692c0
user_main: pthread_exit() test
pthread_exit_test: Started pthread_exit_main at PID=41
pthread_exit_main 41: Starting pthread_exit_thread
pthread_exit_main 41: Sleeping for 5 seconds
pthread_exit_thread 42: Sleeping for 10 second
pthread_exit_thread 42: Still running...
pthread_exit_main 41: Calling pthread_exit()
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 3
mxordblk 68710 66f10
uordblks ac60 cd30
fordblks 692c0 671f0
user_main: pthread_rwlock test
pthread_rwlock: Initializing rwlock
pthread_exit_thread 42: Exiting
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 4
mxordblk 66f10 66f10
uordblks cd30 ac70
fordblks 671f0 692b0
user_main: pthread_rwlock_cancel test
pthread_rwlock_cancel: Starting test
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 3
mxordblk 66f10 69720
uordblks ac70 a3a0
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user_main: timed wait test
thread_waiter: Initializing mutex
timedwait_test: Initializing cond
timedwait_test: Starting waiter
timedwait_test: Set thread 2 priority to 177
thread_waiter: Taking mutex
timedwait_test: Joining
thread_waiter: Starting 5 second wait for condition
thread_waiter: pthread_cond_timedwait timed out
thread_waiter: Releasing mutex
thread_waiter: Exit with status 0x12345678
timedwait_test: waiter exited with result=0x12345678
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 69720 68f18
uordblks a3a0 ac70
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user_main: message queue test
mqueue_test: Starting receiver
mqueue_test: Set receiver priority to 128
receiver_thread: Starting
mqueue_test: Starting sender
mqueue_test: Set sender thread priority to 64
mqueue_test: Waiting for sender to complete
sender_thread: Starting
receiver_thread: mq_receive succeeded on msg 0
sender_thread: mq_send succeeded on msg 0
receiver_thread: mq_receive succeeded on msg 1
sender_thread: mq_send succeeded on msg 1
receiver_thread: mq_receive succeeded on msg 2
sender_thread: mq_send succeeded on msg 2
receiver_thread: mq_receive succeeded on msg 3
sender_thread: mq_send succeeded on msg 3
receiver_thread: mq_receive succeeded on msg 4
sender_thread: mq_send succeeded on msg 4
receiver_thread: mq_receive succeeded on msg 5
sender_thread: mq_send succeeded on msg 5
receiver_thread: mq_receive succeeded on msg 6
sender_thread: mq_send succeeded on msg 6
receiver_thread: mq_receive succeeded on msg 7
sender_thread: mq_send succeeded on msg 7
receiver_thread: mq_receive succeeded on msg 8
sender_thread: mq_send succeeded on msg 8
receiver_thread: mq_receive succeeded on msg 9
sender_thread: mq_send succeeded on msg 9
sender_thread: returning nerrors=0
mqueue_test: Killing receiver
receiver_thread: mq_receive interrupted!
receiver_thread: returning nerrors=0
mqueue_test: Canceling receiver
mqueue_test: receiver has already terminated
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 2
mxordblk 68f18 67718
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user_main: timed message queue test
timedmqueue_test: Starting sender
timedmqueue_test: Waiting for sender to complete
sender_thread: Starting
sender_thread: mq_timedsend succeeded on msg 0
sender_thread: mq_timedsend succeeded on msg 1
sender_thread: mq_timedsend succeeded on msg 2
sender_thread: mq_timedsend succeeded on msg 3
sender_thread: mq_timedsend succeeded on msg 4
sender_thread: mq_timedsend succeeded on msg 5
sender_thread: mq_timedsend succeeded on msg 6
sender_thread: mq_timedsend succeeded on msg 7
sender_thread: mq_timedsend succeeded on msg 8
sender_thread: mq_timedsend 9 timed out as expected
sender_thread: returning nerrors=0
timedmqueue_test: Starting receiver
timedmqueue_test: Waiting for receiver to complete
receiver_thread: Starting
receiver_thread: mq_timedreceive succeed on msg 0
receiver_thread: mq_timedreceive succeed on msg 1
receiver_thread: mq_timedreceive succeed on msg 2
receiver_thread: mq_timedreceive succeed on msg 3
receiver_thread: mq_timedreceive succeed on msg 4
receiver_thread: mq_timedreceive succeed on msg 5
receiver_thread: mq_timedreceive succeed on msg 6
receiver_thread: mq_timedreceive succeed on msg 7
receiver_thread: mq_timedreceive succeed on msg 8
receiver_thread: Receive 9 timed out as expected
receiver_thread: returning nerrors=0
timedmqueue_test: Test complete
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 2 2
mxordblk 67718 67718
uordblks c4d0 c4d0
fordblks 67a50 67a50
user_main: sigprocmask test
sigprocmask_test: SUCCESS
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 2 2
mxordblk 67718 67718
uordblks c4d0 c4d0
fordblks 67a50 67a50
user_main: signal handler test
sighand_test: Initializing semaphore to 0
sighand_test: Starting waiter task
sighand_test: Started waiter_main pid=61
waiter_main: Waiter started
waiter_main: Unmasking signal 32
waiter_main: Registering signal handler
waiter_main: oact.sigaction=0 oact.sa_flags=0 oact.sa_mask=0000000000000000
waiter_main: Waiting on semaphore
sighand_test: Signaling pid=61 with signo=32 sigvalue=42
waiter_main: sem_wait() successfully interrupted by signal
waiter_main: done
sighand_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 2 2
mxordblk 67718 67718
uordblks c4d0 c500
fordblks 67a50 67a20
user_main: nested signal handler test
signest_test: Starting signal waiter task at priority 101
waiter_main: Waiter started
signest_test: Started waiter_main pid=62
waiter_main: Setting signal mask
signest_test: Starting interfering task at priority 102
waiter_main: Registering signal handler
interfere_main: Waiting on semaphore
waiter_main: Waiting on semaphore
signest_test: Started interfere_main pid=63
signest_test: Simple case:
Total signalled 1240 Odd=620 Even=620
Total handled 1240 Odd=620 Even=620
Total nested 0 Odd=0 Even=0
signest_test: With task locking
Total signalled 2480 Odd=1240 Even=1240
Total handled 2480 Odd=1240 Even=1240
Total nested 0 Odd=0 Even=0
signest_test: With intefering thread
Total signalled 3720 Odd=1860 Even=1860
Total handled 3720 Odd=1860 Even=1860
Total nested 0 Odd=0 Even=0
signest_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 2 3
mxordblk 67718 65200
uordblks c500 cc60
fordblks 67a20 672c0
user_main: wdog test
wdog_test start...
wdtest_once 0 ns
wwwdddttteeesssttt___ooonnnccceee 000 nnnsss
wdtest_once 1 ns
wdtest_once 1 ns
wdtest_once 1 ns
wdtest_once 1 ns
wdtest_once 10 ns
wdtest_once 10 ns
wdtest_once 10 ns
wdtest_once 10 ns
wdtest_once 100 ns
wdtest_once 100 ns
wdtest_once 100 ns
wdtest_once 100 ns
wdtest_once 1000 ns
wdtest_once 1000 ns
wdtest_once 1000 ns
wdtest_once 1000 ns
wdtest_once 10000 ns
wdtest_once 10000 ns
wdtest_once 10000 ns
wdtest_once 10000 ns
wdtest_once 100000 ns
wdtest_once 100000 ns
wdtest_once 100000 ns
wdtest_once 100000 ns
wdtest_once 1000000 ns
wdtest_once 1000000 ns
wdtest_once 1000000 ns
wdtest_once 1000000 ns
wd_start with maximum delay, cancel OK, rest 2147483646
wdtest_recursive 1000000us
wd_start with maximum delay, cancel OK, rest 2147483646
wdtest_recursive 1000000us
wd_start with maximum delay, cancel OK, rest 2147483646
wdtest_recursive 1000000us
wd_start with maximum delay, cancel OK, rest 2147483646
wdtest_recursive 1000000us
recursive wdog triggered 6 times, elapsed tick 12
wdtest_recursive 10000000us
recursive wdog triggered 6 times, elapsed tick 12
wdtest_recursive 10000000us
recursive wdog triggered 6 times, elapsed tick 12
wdtest_recursive 10000000us
recursive wdog triggered 6 times, elapsed tick 12
wdtest_recursive 10000000us
recursive wdog triggered 6 times, elapsed tick 12
recursive wdog triggered 6 times, elapsed tick 12
recursive wdog triggered 6 times, elapsed tick 12
recursive wdog triggered 6 times, elapsed tick 12
wdog_test end...
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 3
mxordblk 65200 65200
uordblks cc60 ced0
fordblks 672c0 67050
user_main: POSIX timer test
timer_test: Initializing semaphore to 0
timer_test: Unmasking signal 32
timer_test: Registering signal handler
timer_test: oact.sigaction=0x805526d oact.sa_flags=0
oact.sa_mask=aaaaaaaaaaaaaaaa
timer_test: Creating timer
timer_test: Starting timer
timer_test: Waiting on semaphore
timer_expiration: Received signal 32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: ucontext=0
timer_test: sem_wait() successfully interrupted by signal
timer_test: g_nsigreceived=1
timer_test: Waiting on semaphore
timer_expiration: Received signal 32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: ucontext=0
timer_test: sem_wait() successfully interrupted by signal
timer_test: g_nsigreceived=2
timer_test: Waiting on semaphore
timer_expiration: Received signal 32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: ucontext=0
timer_test: sem_wait() successfully interrupted by signal
timer_test: g_nsigreceived=3
timer_test: Waiting on semaphore
timer_expiration: Received signal 32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: ucontext=0
timer_test: sem_wait() successfully interrupted by signal
timer_test: g_nsigreceived=4
timer_test: Waiting on semaphore
timer_expiration: Received signal 32
timer_expiration: sival_int=42
timer_expiration: si_code=2 (SI_TIMER)
timer_expiration: ucontext=0
timer_test: sem_wait() successfully interrupted by signal
timer_test: g_nsigreceived=5
timer_test: Deleting timer
timer_test: done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 4
mxordblk 65200 65200
uordblks ced0 ceb0
fordblks 67050 67070
user_main: round-robin scheduler test
rr_test: Set thread priority to 1
rr_test: Set thread policy to SCHED_RR
rr_test: Starting first get_primes_thread
First get_primes_thread: 75
rr_test: Starting second get_primes_thread
Second get_primes_thread: 76
rr_test: Waiting for threads to complete -- this should take awhile
If RR scheduling is working, they should start and complete at
about the same time
get_primes_thread id=1 started, looking for primes < 10000, doing 10 run(s)
get_primes_thread id=2 started, looking for primes < 10000, doing 10 run(s)
get_primes_thread id=1 finished, found 1230 primes, last one was 9973
get_primes_thread id=2 finished, found 1230 primes, last one was 9973
rr_test: Done
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 4
mxordblk 65200 65200
uordblks ceb0 bd10
fordblks 67070 68210
user_main: barrier test
barrier_test: Initializing barrier
barrier_test: Thread 0 created
barrier_func: Thread 0 started
barrier_test: Thread 1 created
barrier_func: Thread 1 started
barrier_test: Thread 2 created
barrier_func: Thread 2 started
barrier_test: Thread 3 created
barrier_func: Thread 3 started
barrier_test: Thread 4 created
barrier_func: Thread 4 started
barrier_test: Thread 5 created
barrier_func: Thread 5 started
barrier_test: Thread 6 created
barrier_func: Thread 6 started
barrier_test: Thread 7 created
barrier_func: Thread 7 started
barrier_func: Thread 0 calling pthread_barrier_wait()
barrier_func: Thread 1 calling pthread_barrier_wait()
barrier_func: Thread 2 calling pthread_barrier_wait()
barrier_func: Thread 3 calling pthread_barrier_wait()
barrier_func: Thread 4 calling pthread_barrier_wait()
barrier_func: Thread 5 calling pthread_barrier_wait()
barrier_func: Thread 6 calling pthread_barrier_wait()
barrier_func: Thread 7 calling pthread_barrier_wait()
barrier_func: Thread 7, back with status=PTHREAD_BARRIER_SERIAL_THREAD (I AM
SPECIAL)
barrier_func: Thread 0, back with status=0 (I am not special)
barrier_func: Thread 1, back with status=0 (I am not special)
barrier_func: Thread 2, back with status=0 (I am not special)
barrier_func: Thread 3, back with status=0 (I am not special)
barrier_func: Thread 4, back with status=0 (I am not special)
barrier_func: Thread 5, back with status=0 (I am not special)
barrier_func: Thread 6, back with status=0 (I am not special)
barrier_func: Thread 7 done
barrier_func: Thread 0 done
barrier_func: Thread 1 done
barrier_test: Thread 0 completed with result=0
barrier_test: Thread 1 completed with result=0
barrier_func: Thread 2 done
barrier_func: Thread 3 done
barrier_test: Thread 2 completed with result=0
barrier_test: Thread 3 completed with result=0
barrier_func: Thread 4 done
barrier_func: Thread 5 done
barrier_test: Thread 4 completed with result=0
barrier_test: Thread 5 completed with result=0
barrier_func: Thread 6 done
barrier_test: Thread 6 completed with result=0
barrier_test: Thread 7 completed with result=0
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 4 6
mxordblk 65200 65200
uordblks bd10 bd10
fordblks 68210 68210
user_main: scheduler lock test
sched_lock: Starting lowpri_thread at 97
sched_lock: Set lowpri_thread priority to 97
sched_lock: Starting highpri_thread at 98
sched_lock: Set highpri_thread priority to 98
sched_lock: Waiting...
sched_lock: PASSED No pre-emption occurred while scheduler was locked.
sched_lock: Starting lowpri_thread at 97
sched_lock: Set lowpri_thread priority to 97
sched_lock: Starting highpri_thread at 98
sched_lock: Set highpri_thread priority to 98
sched_lock: Waiting...
sched_lock: PASSED No pre-emption occurred while scheduler was locked.
sched_lock: Finished
End of test memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 6 6
mxordblk 65200 65200
uordblks bd10 b440
fordblks 68210 68ae0
user_main: vfork() test
vfork_test: Child 98 ran successfully
Final memory usage:
VARIABLE BEFORE AFTER
======== ======== ========
arena 73f20 73f20
ordblks 3 6
mxordblk 69720 65200
uordblks a3f0 cb78
fordblks 69b30 673a8
user_main: Exiting
ostest_main: Exiting with status 0
stdio_test: Standard I/O Check: fprintf to stderr
```
Here is the results of `ostest` when LAZYFPU is enabled:
```console
tbd, currently crashes
```
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