X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fcode%2Ftime.lisp;h=13897422f9600d7a76b53f10a6de963dae2cc554;hb=82cd148d729c241e79c8df04b700beec1b7c55de;hp=c808845c6f3127208f7a2bd46cbd4f6a1177ccbf;hpb=cea4896b2482b7b2b429c1631d774b4cfbc0efba;p=sbcl.git diff --git a/src/code/time.lisp b/src/code/time.lisp index c808845..1389742 100644 --- a/src/code/time.lisp +++ b/src/code/time.lisp @@ -11,97 +11,76 @@ (in-package "SB!IMPL") -(defconstant internal-time-units-per-second 100 - #!+sb-doc - "The number of internal time units that fit into a second. See - GET-INTERNAL-REAL-TIME and GET-INTERNAL-RUN-TIME.") +(defun time-reinit () + (reinit-internal-real-time)) -(defconstant micro-seconds-per-internal-time-unit - (/ 1000000 internal-time-units-per-second)) - -;;; The base number of seconds for our internal "epoch". We initialize -;;; this to the time of the first call to GET-INTERNAL-REAL-TIME, and -;;; then subtract this out of the result. -(defvar *internal-real-time-base-seconds* nil) -(declaim (type (or (unsigned-byte 32) null) *internal-real-time-base-seconds*)) +;;; Implemented in unix.lisp and win32.lisp. +#!+sb-doc +(setf (fdocumentation 'get-internal-real-time 'function) + "Return the real time (\"wallclock time\") since startup in the internal +time format. (See INTERNAL-TIME-UNITS-PER-SECOND.)") -(defun get-internal-real-time () - #!+sb-doc - "Return the real time in the internal time format. This is useful for - finding elapsed time. See Internal-Time-Units-Per-Second." - ;; FIXME: See comment on OPTIMIZE declaration in GET-INTERNAL-RUN-TIME. - (declare (optimize (speed 3) (safety 3))) - (multiple-value-bind (ignore seconds useconds) (sb!unix:unix-gettimeofday) - (declare (ignore ignore) (type (unsigned-byte 32) seconds useconds)) - (let ((base *internal-real-time-base-seconds*) - (uint (truncate useconds - micro-seconds-per-internal-time-unit))) - (declare (type (unsigned-byte 32) uint)) - (cond (base - (truly-the (unsigned-byte 32) - (+ (the (unsigned-byte 32) - (* (the (unsigned-byte 32) (- seconds base)) - internal-time-units-per-second)) - uint))) - (t - (setq *internal-real-time-base-seconds* seconds) - uint))))) - -#!-(and sparc svr4) -(defun get-internal-run-time () - #!+sb-doc - "Return the run time in the internal time format. This is useful for - finding CPU usage." - (declare (values (unsigned-byte 32))) - ;; FIXME: In CMU CL this was (SPEED 3) (SAFETY 0), and perhaps - ;; someday it should be again, since overhead here is annoying. But - ;; it's even more annoying to worry about this function returning - ;; out-of-range values, so while debugging the profiling code, - ;; I set it to (SAFETY 3) for now. - (declare (optimize (speed 3) (safety 3))) - (multiple-value-bind (ignore utime-sec utime-usec stime-sec stime-usec) - (sb!unix:unix-fast-getrusage sb!unix:rusage_self) - (declare (ignore ignore) - (type (unsigned-byte 31) utime-sec stime-sec) - ;; (Classic CMU CL had these (MOD 1000000) instead, but - ;; at least in Linux 2.2.12, the type doesn't seem to be - ;; documented anywhere and the observed behavior is to - ;; sometimes return 1000000 exactly.) - (type (integer 0 1000000) utime-usec stime-usec)) - (+ (the (unsigned-byte 32) - (* (the (unsigned-byte 32) (+ utime-sec stime-sec)) - internal-time-units-per-second)) - (truncate (+ utime-usec stime-usec) - micro-seconds-per-internal-time-unit)))) - -#!+(and sparc svr4) (defun get-internal-run-time () #!+sb-doc - "Return the run time in the internal time format. This is useful for - finding CPU usage." - (declare (values (unsigned-byte 32))) - ;; FIXME: See comment on OPTIMIZE declaration in other - ;; version of GET-INTERNAL-RUN-TIME. - (declare (optimize (speed 3) (safety 3))) - (multiple-value-bind (ignore utime stime cutime cstime) - (sb!unix:unix-times) - (declare (ignore ignore cutime cstime) - (type (unsigned-byte 31) utime stime)) - (the (unsigned-byte 32) (+ utime stime)))) + "Return the run time used by the process in the internal time format. (See +INTERNAL-TIME-UNITS-PER-SECOND.) This is useful for finding CPU usage. +Includes both \"system\" and \"user\" time." + (system-internal-run-time)) ;;;; Encode and decode universal times. -;;; Returns two values: -;;; - the minutes west of GMT. -;;; - T if daylight savings is in effect, NIL if not. -(sb!alien:def-alien-routine get-timezone sb!c-call:void - (when sb!c-call:long :in) - (minutes-west sb!c-call:int :out) - (daylight-savings-p sb!alien:boolean :out)) - -;;; Subtract from the returned Internal-Time to get the universal time. -;;; The offset between our time base and the Perq one is 2145 weeks and -;;; five days. +;;; In August 2003, work was done in this file for more plausible +;;; timezone handling after the unix timezone database runs out in +;;; 2038. We assume that timezone rules are trending sane rather than +;;; insane, so for all years after the end of time_t we apply the +;;; rules for 2035/2036 instead of the actual date asked for. Making +;;; the same assumption about the early 1900s would be less +;;; reasonable, however, so please note that we're still broken for +;;; local time between 1900-1-1 and 1901-12-13 + +;;; It should be noted that 64 bit machines don't actually fix this +;;; problem, at least as of 2003, because the Unix zonefiles are +;;; specified in terms of 32 bit fields even on, say, the Alpha. So, +;;; references to the range of time_t elsewhere in this file should +;;; rightly be read as shorthand for the range of an signed 32 bit +;;; number of seconds since 1970-01-01 + +;;; I'm obliged to Erik Naggum's "Long, Painful History of Time" paper +;;; for the choice of epoch here. +;;; By starting the year in March, we avoid having to test the month +;;; whenever deciding whether to account for a leap day. 2000 is +;;; especially special, because it's divisible by 400, hence the start +;;; of a 400 year leap year cycle + +;;; If a universal-time is after time_t runs out, we find its offset +;;; from 1st March of whichever year it falls in, then add that to +;;; 2035-3-1. This date has two relevant properties: (1) somewhere +;;; near the end of time_t, and (2) preceding a leap year. Thus a +;;; date which is e.g. 365.5 days from March 1st in its year will be +;;; treated for timezone lookup as if it were Feb 29th 2036 + +;;; This epoch is used only for fixing the timezones-outside-time_t +;;; problem. Someday it would be nice to come back to this code and +;;; see if the rest of the file and its references to Spice Lisp +;;; history (Perq time base?) could be cleaned up any on this basis. +;;; -- dan, 2003-08-08 + +;;; In order to accomodate universal times between January 1st 1900 +;;; and sometime on December 13th 1901, I'm doing the same calculation +;;; as described above in order to handle dates in that interval, by +;;; normalizing them to March 1st 1903, which shares the same special +;;; properties described above (except for the 400-year property, but +;;; this isn't an issue for the limited range we need to handle). + +;;; One open issue is whether to pass UNIX a 64-bit time_t value on +;;; 64-bit platforms. I don't know if time_t is always 64-bit on those +;;; platforms, and looking at this file reveals a scary amount of +;;; literal 31 and 32s. +;;; -- bem, 2005-08-09 + +;;; Subtract from the returned Internal-Time to get the universal +;;; time. The offset between our time base and the Perq one is 2145 +;;; weeks and five days. (defconstant seconds-in-week (* 60 60 24 7)) (defconstant weeks-offset 2145) (defconstant seconds-offset 432000) @@ -114,190 +93,371 @@ (defun get-universal-time () #!+sb-doc - "Returns 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))) + "Return a single integer for the current time of day in universal time +format." + (+ (get-time-of-day) unix-to-universal-time)) (defun get-decoded-time () #!+sb-doc - "Returns nine values specifying the current time as follows: + "Return nine values specifying the current time as follows: second, minute, hour, date, month, year, day of week (0 = Monday), T (daylight savings times) or NIL (standard time), and timezone." (decode-universal-time (get-universal-time))) +(defconstant +mar-1-2000+ #.(encode-universal-time 0 0 0 1 3 2000 0)) +(defconstant +mar-1-2035+ #.(encode-universal-time 0 0 0 1 3 2035 0)) + +(defconstant +mar-1-1903+ #.(encode-universal-time 0 0 0 1 3 1903 0)) + +(defun years-since-mar-2000 (utime) + "Returns number of complete years since March 1st 2000, and remainder in seconds" + (let* ((days-in-year (* 86400 365)) + (days-in-4year (+ (* 4 days-in-year) 86400)) + (days-in-100year (- (* 25 days-in-4year) 86400)) + (days-in-400year (+ (* 4 days-in-100year) 86400)) + (offset (- utime +mar-1-2000+)) + (year 0)) + (labels ((whole-num (x y inc max) + (let ((w (truncate x y))) + (when (and max (> w max)) (setf w max)) + (incf year (* w inc)) + (* w y)))) + (decf offset (whole-num offset days-in-400year 400 nil)) + (decf offset (whole-num offset days-in-100year 100 3)) + (decf offset (whole-num offset days-in-4year 4 25)) + (decf offset (whole-num offset days-in-year 1 3)) + (values year offset)))) + +(defun truncate-to-unix-range (utime) + (let ((unix-time (- utime unix-to-universal-time))) + (cond + ((< unix-time (- (ash 1 31))) + (multiple-value-bind (year offset) (years-since-mar-2000 utime) + (declare (ignore year)) + (+ +mar-1-1903+ (- unix-to-universal-time) offset))) + ((>= unix-time (ash 1 31)) + (multiple-value-bind (year offset) (years-since-mar-2000 utime) + (declare (ignore year)) + (+ +mar-1-2035+ (- unix-to-universal-time) offset))) + (t unix-time)))) + (defun decode-universal-time (universal-time &optional time-zone) #!+sb-doc "Converts a universal-time to decoded time format returning the following nine values: second, minute, hour, date, month, year, day of week (0 = Monday), T (daylight savings time) or NIL (standard time), and timezone. Completely ignores daylight-savings-time when time-zone is supplied." - (multiple-value-bind (weeks secs) - (truncate (+ universal-time seconds-offset) - seconds-in-week) - (let* ((weeks (+ weeks weeks-offset)) - (second NIL) - (minute NIL) - (hour NIL) - (date NIL) - (month NIL) - (year NIL) - (day NIL) - (daylight NIL) - (timezone (if (null time-zone) - (multiple-value-bind - (ignore minwest dst) - (get-timezone (- universal-time - unix-to-universal-time)) - (declare (ignore ignore)) - (setf daylight dst) - minwest) - (* time-zone 60)))) - (declare (fixnum timezone)) - (multiple-value-bind (t1 seconds) (truncate secs 60) - (setq second seconds) - (setq t1 (- t1 timezone)) - (let* ((tday (if (< t1 0) - (1- (truncate (1+ t1) minutes-per-day)) - (truncate t1 minutes-per-day)))) - (multiple-value-setq (hour minute) - (truncate (- t1 (* tday minutes-per-day)) 60)) - (let* ((t2 (1- (* (+ (* weeks 7) tday november-17-1858) 4))) - (tcent (truncate t2 quarter-days-per-century))) - (setq t2 (mod t2 quarter-days-per-century)) - (setq t2 (+ (- t2 (mod t2 4)) 3)) - (setq year (+ (* tcent 100) (truncate t2 quarter-days-per-year))) - (let ((days-since-mar0 (1+ (truncate (mod t2 quarter-days-per-year) - 4)))) - (setq day (mod (+ tday weekday-november-17-1858) 7)) - (let ((t3 (+ (* days-since-mar0 5) 456))) - (cond ((>= t3 1989) - (setq t3 (- t3 1836)) - (setq year (1+ year)))) - (multiple-value-setq (month t3) (truncate t3 153)) - (setq date (1+ (truncate t3 5)))))))) - (values second minute hour date month year day - daylight - (if daylight - (1+ (/ timezone 60)) - (/ timezone 60)))))) + (multiple-value-bind (daylight seconds-west) + (if time-zone + (values nil (* time-zone 60 60)) + (multiple-value-bind (ignore seconds-west daylight) + (sb!unix::get-timezone (truncate-to-unix-range universal-time)) + (declare (ignore ignore)) + (declare (fixnum seconds-west)) + (values daylight seconds-west))) + (declare (fixnum seconds-west)) + (multiple-value-bind (weeks secs) + (truncate (+ (- universal-time seconds-west) seconds-offset) + seconds-in-week) + (let ((weeks (+ weeks weeks-offset))) + (multiple-value-bind (t1 second) + (truncate secs 60) + (let ((tday (truncate t1 minutes-per-day))) + (multiple-value-bind (hour minute) + (truncate (- t1 (* tday minutes-per-day)) 60) + (let* ((t2 (1- (* (+ (* weeks 7) tday november-17-1858) 4))) + (tcent (truncate t2 quarter-days-per-century))) + (setq t2 (mod t2 quarter-days-per-century)) + (setq t2 (+ (- t2 (mod t2 4)) 3)) + (let* ((year (+ (* tcent 100) + (truncate t2 quarter-days-per-year))) + (days-since-mar0 + (1+ (truncate (mod t2 quarter-days-per-year) 4))) + (day (mod (+ tday weekday-november-17-1858) 7)) + (t3 (+ (* days-since-mar0 5) 456))) + (cond ((>= t3 1989) + (setq t3 (- t3 1836)) + (setq year (1+ year)))) + (multiple-value-bind (month t3) + (truncate t3 153) + (let ((date (1+ (truncate t3 5)))) + (values second minute hour date month year day + daylight + (if daylight + (1+ (/ seconds-west 60 60)) + (/ seconds-west 60 60)))))))))))))) (defun pick-obvious-year (year) (declare (type (mod 100) year)) (let* ((current-year (nth-value 5 (get-decoded-time))) - (guess (+ year (* (truncate (- current-year 50) 100) 100)))) + (guess (+ year (* (truncate (- current-year 50) 100) 100)))) (declare (type (integer 1900 9999) current-year guess)) (if (> (- current-year guess) 50) - (+ guess 100) - guess))) + (+ guess 100) + guess))) (defun leap-years-before (year) (let ((years (- year 1901))) (+ (- (truncate years 4) - (truncate years 100)) + (truncate years 100)) (truncate (+ years 300) 400)))) (defvar *days-before-month* #.(let ((reversed-result nil) - (sum 0)) + (sum 0)) (push nil reversed-result) (dolist (days-in-month '(31 28 31 30 31 30 31 31 30 31 30 31)) - (push sum reversed-result) - (incf sum days-in-month)) + (push sum reversed-result) + (incf sum days-in-month)) (coerce (nreverse reversed-result) 'simple-vector))) + (defun encode-universal-time (second minute hour date month year - &optional time-zone) + &optional time-zone) #!+sb-doc "The time values specified in decoded format are converted to universal time, which is returned." (declare (type (mod 60) second) - (type (mod 60) minute) - (type (mod 24) hour) - (type (integer 1 31) date) - (type (integer 1 12) month) - (type (or (integer 0 99) (integer 1900)) year) - (type (or null rational) time-zone)) + (type (mod 60) minute) + (type (mod 24) hour) + (type (integer 1 31) date) + (type (integer 1 12) month) + (type (or (integer 0 99) (integer 1899)) year) + ;; that type used to say (integer 1900), but that's + ;; incorrect when a time-zone is specified: we should be + ;; able to encode to produce 0 when a non-zero timezone is + ;; specified - bem, 2005-08-09 + (type (or null rational) time-zone)) (let* ((year (if (< year 100) - (pick-obvious-year year) - year)) - (days (+ (1- date) - (aref *days-before-month* month) - (if (> month 2) - (leap-years-before (1+ year)) - (leap-years-before year)) - (* (- year 1900) 365))) - (hours (+ hour (* days 24)))) + (pick-obvious-year year) + year)) + (days (+ (1- date) + (aref *days-before-month* month) + (if (> month 2) + (leap-years-before (1+ year)) + (leap-years-before year)) + (* (- year 1900) 365))) + (hours (+ hour (* days 24))) + (encoded-time 0)) (if time-zone - (+ second (* (+ minute (* (+ hours time-zone) 60)) 60)) - (let* ((minwest-guess - (nth-value 1 - (get-timezone (- (* hours 60 60) - unix-to-universal-time)))) - (guess (+ minute (* hours 60) minwest-guess)) - (minwest - (nth-value 1 - (get-timezone (- (* guess 60) - unix-to-universal-time))))) - (+ second (* (+ guess (- minwest minwest-guess)) 60)))))) + (setf encoded-time (+ second (* (+ minute (* (+ hours time-zone) 60)) 60))) + (let* ((secwest-guess + (sb!unix::unix-get-seconds-west + (truncate-to-unix-range (* hours 60 60)))) + (guess (+ second (* 60 (+ minute (* hours 60))) + secwest-guess)) + (secwest + (sb!unix::unix-get-seconds-west + (truncate-to-unix-range guess)))) + (setf encoded-time (+ guess (- secwest secwest-guess))))) + (assert (typep encoded-time '(integer 0))) + encoded-time)) ;;;; TIME +(defvar *gc-run-time* 0 + #!+sb-doc + "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 - "Evaluates the Form and prints timing information on *Trace-Output*." - `(%time #'(lambda () ,form))) - -;;; Try to compile the closure arg to %TIME if it is interpreted. -(defun massage-time-function (fun) - (cond - ((sb!eval:interpreted-function-p fun) - (multiple-value-bind (def env-p) (function-lambda-expression fun) - (declare (ignore def)) - (cond - (env-p - (warn "TIME form in a non-null environment, forced to interpret.~@ - Compiling entire form will produce more accurate times.") - fun) - (t - (compile nil fun))))) - (t fun))) - -;;; Return all the files that we want time to report. + "Execute FORM and print timing information on *TRACE-OUTPUT*. + +On some hardware platforms estimated processor cycle counts are +included in this output; this number is slightly inflated, since it +includes the pipeline involved in reading the cycle counter -- +executing \(TIME NIL) a few times will give you an idea of the +overhead, and its variance. The cycle counters are also per processor, +not per thread: if multiple threads are running on the same processor, +the reported counts will include cycles taken up by all threads +running on the processor where TIME was executed. Furthermore, if the +operating system migrates the thread to another processor between +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." + `(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 + (+ (ash (- h1 h0) 32) + (- l1 l0)) + #!-cycle-counter + nil) +(declaim (inline read-cycle-counter)) +(defun read-cycle-counter () + #!+cycle-counter + (sb!vm::%read-cycle-counter) + #!-cycle-counter + (values 0 0)) + +;;; This is so that we don't have to worry about the vagaries of +;;; floating point printing, or about conversions to floats dropping +;;; or introducing decimals, which are liable to imply wrong precision. +(defun format-microseconds (stream usec &optional colonp atp) + (declare (ignore colonp)) + (%format-decimal stream usec 6) + (unless atp + (write-string " seconds" stream))) + +(defun format-milliseconds (stream usec &optional colonp atp) + (declare (ignore colonp)) + (%format-decimal stream usec 3) + (unless atp + (write-string " seconds" stream))) + +(defun %format-decimal (stream number power) + (declare (stream stream) + (integer number power)) + (when (minusp number) + (write-char #\- stream) + (setf number (- number))) + (let ((scale (expt 10 power))) + (labels ((%fraction (fraction) + (if (zerop fraction) + (%zeroes) + (let ((scaled (* 10 fraction))) + (loop while (< scaled scale) + do (write-char #\0 stream) + (setf scaled (* scaled 10))))) + (format stream "~D" fraction)) + (%zeroes () + (let ((scaled (/ scale 10))) + (write-char #\0 stream) + (loop while (> scaled 1) + do (write-char #\0 stream) + (setf scaled (/ scaled 10)))))) + (cond ((zerop number) + (write-string "0." stream) + (%zeroes)) + ((< number scale) + (write-string "0." stream) + (%fraction number)) + ((= number scale) + (write-string "1." stream) + (%zeroes)) + ((> number scale) + (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) - (let ((fun (massage-time-function fun)) - old-run-utime - new-run-utime - old-run-stime - new-run-stime - old-real-time - new-real-time - old-page-faults - new-page-faults - real-time-overhead - run-utime-overhead - run-stime-overhead - page-faults-overhead - old-bytes-consed - new-bytes-consed - cons-overhead) +(defun call-with-timing (timer function &rest arguments) + #!+sb-doc + "Calls FUNCTION with ARGUMENTS, and gathers timing information 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 + new-run-stime + old-real-time + new-real-time + old-page-faults + new-page-faults + real-time-overhead + run-utime-overhead + run-stime-overhead + page-faults-overhead + old-bytes-consed + new-bytes-consed + 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) + (old-run-utime old-run-stime old-page-faults old-bytes-consed) (time-get-sys-info)) ;; Do it a second time to make sure everything is faulted in. (multiple-value-setq - (old-run-utime old-run-stime old-page-faults old-bytes-consed) + (old-run-utime old-run-stime old-page-faults old-bytes-consed) (time-get-sys-info)) (multiple-value-setq - (new-run-utime new-run-stime new-page-faults new-bytes-consed) + (new-run-utime new-run-stime new-page-faults new-bytes-consed) (time-get-sys-info)) (setq run-utime-overhead (- new-run-utime old-run-utime)) (setq run-stime-overhead (- new-run-stime old-run-stime)) @@ -309,33 +469,44 @@ (setq cons-overhead (- new-bytes-consed old-bytes-consed)) ;; Now get the initial times. (multiple-value-setq - (old-run-utime old-run-stime old-page-faults old-bytes-consed) + (old-run-utime old-run-stime old-page-faults old-bytes-consed) (time-get-sys-info)) (setq old-real-time (get-internal-real-time)) - (let ((start-gc-run-time *gc-run-time*)) - (multiple-value-prog1 - ;; Execute the form and return its values. - (funcall fun) - (multiple-value-setq - (new-run-utime new-run-stime new-page-faults new-bytes-consed) - (time-get-sys-info)) - (setq new-real-time (- (get-internal-real-time) real-time-overhead)) - (let ((gc-run-time (max (- *gc-run-time* start-gc-run-time) 0))) - (format *trace-output* - "~&Evaluation took:~% ~ - ~S second~:P of real time~% ~ - ~S second~:P of user run time~% ~ - ~S second~:P of system run time~% ~ -~@[ [Run times include ~S second~:P GC run time.]~% ~]~ - ~S page fault~:P and~% ~ - ~S bytes consed.~%" - (max (/ (- new-real-time old-real-time) - (float internal-time-units-per-second)) - 0.0) - (max (/ (- new-run-utime old-run-utime) 1000000.0) 0.0) - (max (/ (- new-run-stime old-run-stime) 1000000.0) 0.0) - (unless (zerop gc-run-time) - (/ (float gc-run-time) - (float internal-time-units-per-second))) - (max (- new-page-faults old-page-faults) 0) - (max (- new-bytes-consed old-bytes-consed) 0))))))) + (let ((start-gc-internal-run-time *gc-run-time*) + (*eval-calls* 0) + (sb!c::*lambda-conversions* 0) + (aborted t)) + (declare (special *eval-calls* sb!c::*lambda-conversions*)) + (multiple-value-bind (h0 l0) (read-cycle-counter) + (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 + (new-run-utime new-run-stime new-page-faults new-bytes-consed) + (time-get-sys-info)) + (setq new-real-time (- (get-internal-real-time) real-time-overhead)) + (let* ((gc-internal-run-time (max (- stop-gc-internal-run-time start-gc-internal-run-time) 0)) + (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)) + (cycles (elapsed-cycles h0 l0 h1 l1)) + (page-faults (max (- new-page-faults old-page-faults) 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))))))))))