• Theodore Ts'o's avatar
    jbd2: track request delay statistics · 9fff24aa
    Theodore Ts'o authored
    Track the delay between when we first request that the commit begin
    and when it actually begins, so we can see how much of a gap exists.
    In theory, this should just be the remaining scheduling quantuum of
    the thread which requested the commit (assuming it was not a
    synchronous operation which triggered the commit request) plus
    scheduling overhead; however, it's possible that real time processes
    might get in the way of letting the kjournald thread from executing.
    Signed-off-by: default avatar"Theodore Ts'o" <tytso@mit.edu>
    9fff24aa
transaction.c 69.7 KB