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RE: What on Earth is JFFS2 GC doing?
>> [firstname.lastname@example.org -m
>> 4 startup_32 0.0127
>> 1 printk 0.0024
>> 1 get_unused_buffer_head 0.0069
>> 2 write_profile 0.0417
>> 3 cfi_amdstd_erase_onesize 0.0031
>> 3 physmap_read32 0.0938
>> 2 __generic_copy_to_user 0.0312
>> 1 __generic_copy_from_user 0.0156
>> 17 total 0.0000
>Am I interpreting the above correctly? During the 22.9-second period it
>took to perform that write, there were a total of 17 timer ticks?
That's what the profile says! I haven't touched my program. Something caused
the ticks to go way down (from ~220+) to the ~17, but the block time still
has not come down? What's taking the rest of the time? I take it that each
"tick" is the kernel 10ms tick?
If so, that's just 170 ms, where is the rest of the time?
>I did expect the worst case times to get a lot better though - 22
>better than 60.
It never was 60. The 60 number came when I turned verbose debug on. I have
never seem more than ~18 secs with debug turned off. It was turned off this
time- so the 22 is the worst we have ever seen till now, but the ticks is
down quite a bit.
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