On 5/7/20 9:30 AM, Randy Dunlap wrote: > On 5/6/20 5:42 PM, Anthony Yznaga wrote: >> Improve performance by multithreading the work to preserve and restore >> shmem pages. >> >> Add 'pkram_max_threads=' kernel option to specify the maximum number >> of threads to use to preserve or restore the pages of a shmem file. >> The default is 16. > Hi, > Please document kernel boot options in Documentation/admin-guide/kernel-parameters.txt. I'll do that. Thanks! Anthony > >> When preserving pages each thread saves chunks of a file to a pkram_obj >> until no more no more chunks are available. >> >> When restoring pages each thread loads pages using a copy of a >> pkram_stream initialized by pkram_prepare_load_obj(). Under the hood >> each thread ends up fetching and operating on pkram_link pages. >> >> Signed-off-by: Anthony Yznaga <anthony.yznaga@xxxxxxxxxx> >> --- >> include/linux/pkram.h | 2 + >> mm/shmem_pkram.c | 101 +++++++++++++++++++++++++++++++++++++++++++++++++- >> 2 files changed, 101 insertions(+), 2 deletions(-) > thanks.
