X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftime.lisp;h=8cf2e00c61c95e3eee6e90031f69de1d2e9f9093;hb=77d7fddb855305e783c100bfe9b6b46bdb05e4b6;hp=db7829c587eaf6d295b5612d9faacfa8581a3e7e;hpb=80212db957ccefa9639d33780d6547b7c31ed1e6;p=sbcl.git diff --git a/src/code/time.lisp b/src/code/time.lisp index db7829c..8cf2e00 100644 --- a/src/code/time.lisp +++ b/src/code/time.lisp @@ -95,9 +95,7 @@ Includes both \"system\" and \"user\" time." #!+sb-doc "Return a single integer for the current time of day in universal time format." - (multiple-value-bind (res secs) (sb!unix:unix-gettimeofday) - (declare (ignore res)) - (+ secs unix-to-universal-time))) + (+ (get-time-of-day) unix-to-universal-time)) (defun get-decoded-time () #!+sb-doc @@ -259,10 +257,49 @@ format." (defvar *gc-run-time* 0 #!+sb-doc - "the total CPU time spent doing garbage collection (as reported by - GET-INTERNAL-RUN-TIME)") + "Total CPU time spent doing garbage collection (as reported by +GET-INTERNAL-RUN-TIME.) Initialized to zero on startup. It is safe to bind +this to zero in order to measure GC time inside a certain section of code, but +doing so may interfere with results reported by eg. TIME.") (declaim (type index *gc-run-time*)) +(defun print-time (&key real-time-ms user-run-time-us system-run-time-us + gc-run-time-ms processor-cycles eval-calls + lambdas-converted page-faults bytes-consed + aborted) + (let ((total-run-time-us (+ user-run-time-us system-run-time-us))) + (format *trace-output* + "~&Evaluation took:~%~ + ~@< ~@;~/sb-impl::format-milliseconds/ of real time~%~ + ~/sb-impl::format-microseconds/ of total run time ~ + (~@/sb-impl::format-microseconds/ user, ~@/sb-impl::format-microseconds/ system)~%~ + ~[[ Run times consist of ~/sb-impl::format-milliseconds/ GC time, ~ + and ~/sb-impl::format-milliseconds/ non-GC time. ]~%~;~2*~]~ + ~,2F% CPU~%~ + ~@[~:D form~:P interpreted~%~]~ + ~@[~:D lambda~:P converted~%~]~ + ~@[~:D processor cycles~%~]~ + ~@[~:D page fault~:P~%~]~ + ~:D bytes consed~%~ + ~@[~%before it was aborted by a non-local transfer of control.~%~]~:>~%" + real-time-ms + total-run-time-us + user-run-time-us + system-run-time-us + (if (zerop gc-run-time-ms) 1 0) + gc-run-time-ms + ;; Round up so we don't mislead by saying 0.0 seconds of non-GC time... + (- (ceiling total-run-time-us 1000) gc-run-time-ms) + (if (zerop real-time-ms) + 100.0 + (float (* 100 (/ (round total-run-time-us 1000) real-time-ms)))) + eval-calls + lambdas-converted + processor-cycles + page-faults + bytes-consed + aborted))) + (defmacro time (form) #!+sb-doc "Execute FORM and print timing information on *TRACE-OUTPUT*. @@ -280,14 +317,13 @@ reads of the cycle counter, the results will be completely bogus. Finally, the counter is cycle counter, incremented by the hardware even when the process is halted -- which is to say that cycles pass normally during operations like SLEEP." - `(%time (lambda () ,form))) + `(call-with-timing #'print-time (lambda () ,form))) ;;; Return all the data that we want TIME to report. (defun time-get-sys-info () (multiple-value-bind (user sys faults) (sb!sys:get-system-info) (values user sys faults (get-bytes-consed)))) - (defun elapsed-cycles (h0 l0 h1 l1) (declare (ignorable h0 l0 h1 l1)) #!+cycle-counter @@ -351,13 +387,50 @@ normally during operations like SLEEP." (multiple-value-bind (whole fraction) (floor number scale) (format stream "~D." whole) (%fraction fraction)))))) - nil) ;;; The guts of the TIME macro. Compute overheads, run the (compiled) ;;; function, report the times. -(defun %time (fun) - (declare (type function fun)) +(defun call-with-timing (timer function &rest arguments) + #!+sb-doc + "Calls FUNCTION with ARGUMENTS, and gathers timing infomation about it. +Then calls TIMER with keyword arguments describing the information collected. +Calls TIMER even if FUNCTION performs a non-local transfer of control. Finally +returns values returned by FUNCTION. + + :USER-RUN-TIME-US + User run time in microseconds. + + :SYSTEM-RUN-TIME-US + System run time in microseconds. + + :REAL-TIME-MS + Real time in milliseconds. + + :GC-RUN-TIME-MS + GC run time in milliseconds (included in user and system run time.) + + :PROCESSOR-CYCLES + Approximate number of processor cycles used. (Omitted if not supported on + the platform -- currently available on x86 and x86-64 only.) + + :EVAL-CALLS + Number of calls to EVAL. (Omitted if zero.) + + :LAMBDAS-CONVERTED + Number of lambdas converted. (Omitted if zero.) + + :PAGE-FAULTS + Number of page faults. (Omitted if zero.) + + :BYTES-CONSED + Approximate number of bytes consed. + + :ABORTED + True if FUNCTION caused a non-local transfer of control. (Omitted if + NIL.) + +EXPERIMENTAL: Interface subject to change." (let (old-run-utime new-run-utime old-run-stime @@ -372,7 +445,9 @@ normally during operations like SLEEP." page-faults-overhead old-bytes-consed new-bytes-consed - cons-overhead) + cons-overhead + (fun (if (functionp function) function (fdefinition function)))) + (declare (function fun)) ;; Calculate the overhead... (multiple-value-setq (old-run-utime old-run-stime old-page-faults old-bytes-consed) @@ -399,12 +474,13 @@ normally during operations like SLEEP." (setq old-real-time (get-internal-real-time)) (let ((start-gc-internal-run-time *gc-run-time*) (*eval-calls* 0) - (sb!c::*lambda-conversions* 0)) + (sb!c::*lambda-conversions* 0) + (aborted t)) (declare (special *eval-calls* sb!c::*lambda-conversions*)) (multiple-value-bind (h0 l0) (read-cycle-counter) - (multiple-value-prog1 - ;; Execute the form and return its values. - (funcall fun) + (unwind-protect + (multiple-value-prog1 (apply fun arguments) + (setf aborted nil)) (multiple-value-bind (h1 l1) (read-cycle-counter) (let ((stop-gc-internal-run-time *gc-run-time*)) (multiple-value-setq @@ -415,35 +491,22 @@ normally during operations like SLEEP." (real-time (max (- new-real-time old-real-time) 0)) (user-run-time (max (- new-run-utime old-run-utime) 0)) (system-run-time (max (- new-run-stime old-run-stime) 0)) - (total-run-time (+ user-run-time system-run-time)) (cycles (elapsed-cycles h0 l0 h1 l1)) (page-faults (max (- new-page-faults old-page-faults) 0))) - (format *trace-output* - "~&Evaluation took:~%~ - ~@< ~@;~/sb-impl::format-milliseconds/ of real time~%~ - ~/sb-impl::format-microseconds/ of total run time ~ - (~@/sb-impl::format-microseconds/ user, ~@/sb-impl::format-microseconds/ system)~%~ - ~[[ Run times consist of ~/sb-impl::format-milliseconds/ GC time, ~ - and ~/sb-impl::format-milliseconds/ non-GC time. ]~%~;~2*~]~ - ~,2F% CPU~%~ - ~@[~:D form~:P interpreted~%~]~ - ~@[~:D lambda~:P converted~%~]~ - ~@[~:D processor cycles~%~]~ - ~@[~:D page fault~:P~%~]~ - ~:D bytes consed~:>~%" - real-time - total-run-time - user-run-time - system-run-time - (if (zerop gc-internal-run-time) 1 0) - gc-internal-run-time - ;; Round up so we don't mislead by saying 0.0 seconds of non-GC time... - (- (ceiling total-run-time 1000) gc-internal-run-time) - (if (zerop real-time) - 100.0 - (float (* 100 (/ (round total-run-time 1000) real-time)))) - (unless (zerop *eval-calls*) *eval-calls*) - (unless (zerop sb!c::*lambda-conversions*) sb!c::*lambda-conversions*) - cycles - (unless (zerop page-faults) page-faults) - (max (- new-bytes-consed old-bytes-consed) 0)))))))))) + (let (plist) + (flet ((note (name value &optional test) + (unless (and test (funcall test value)) + (setf plist (list* name value plist))))) + (note :aborted aborted #'not) + (note :bytes-consed (max (- new-bytes-consed old-bytes-consed) 0)) + (note :page-faults page-faults #'zerop) + ;; cycle counting isn't supported everywhere. + (when cycles + (note :processor-cycles cycles #'zerop) + (note :lambdas-converted sb!c::*lambda-conversions* #'zerop)) + (note :eval-calls *eval-calls* #'zerop) + (note :gc-run-time-ms gc-internal-run-time) + (note :system-run-time-us system-run-time) + (note :user-run-time-us user-run-time) + (note :real-time-ms real-time)) + (apply timer plist))))))))))