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ed486911 | 1 | /* |
75bd9771 | 2 | * "$Id: rasterbench.c 7376 2008-03-19 21:07:45Z mike $" |
ed486911 | 3 | * |
4 | * Raster benchmark program for the Common UNIX Printing System (CUPS). | |
5 | * | |
ac884b6a | 6 | * Copyright 2007-2008 by Apple Inc. |
ed486911 | 7 | * Copyright 1997-2006 by Easy Software Products. |
8 | * | |
9 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 10 | * property of Apple Inc. and are protected by Federal copyright |
11 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
12 | * which should have been included with this file. If this file is | |
13 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ed486911 | 14 | * |
15 | * This file is subject to the Apple OS-Developed Software exception. | |
16 | * | |
17 | * Contents: | |
18 | * | |
19 | * main() - Benchmark the raster read/write functions. | |
20 | * compute_median() - Compute the median time for a test. | |
21 | * read_test() - Benchmark the raster read functions. | |
22 | * write_test() - Benchmark the raster write functions. | |
23 | */ | |
24 | ||
25 | /* | |
26 | * Include necessary headers... | |
27 | */ | |
28 | ||
41681883 | 29 | #include <config.h> |
ac884b6a | 30 | #include <cups/raster.h> |
ed486911 | 31 | #include <stdlib.h> |
32 | #include <sys/time.h> | |
33 | #include <signal.h> | |
34 | #include <unistd.h> | |
35 | #include <sys/wait.h> | |
36 | ||
37 | ||
38 | /* | |
39 | * Constants... | |
40 | */ | |
41 | ||
42 | #define TEST_WIDTH 1024 | |
43 | #define TEST_HEIGHT 1024 | |
44 | #define TEST_PAGES 16 | |
45 | #define TEST_PASSES 20 | |
46 | ||
47 | ||
48 | /* | |
49 | * Local functions... | |
50 | */ | |
51 | ||
52 | static double compute_median(double *secs); | |
53 | static double get_time(void); | |
54 | static void read_test(int fd); | |
55 | static int run_read_test(void); | |
db0bd74a | 56 | static void write_test(int fd, cups_mode_t mode); |
ed486911 | 57 | |
58 | ||
59 | /* | |
60 | * 'main()' - Benchmark the raster read/write functions. | |
61 | */ | |
62 | ||
63 | int /* O - Exit status */ | |
db0bd74a MS |
64 | main(int argc, /* I - Number of command-line args */ |
65 | char *argv[]) /* I - Command-line arguments */ | |
ed486911 | 66 | { |
67 | int i; /* Looping var */ | |
68 | int ras_fd, /* File descriptor for read process */ | |
69 | status; /* Exit status of read process */ | |
70 | double start_secs, /* Start time */ | |
71 | write_secs, /* Write time */ | |
72 | read_secs, /* Read time */ | |
73 | pass_secs[TEST_PASSES]; /* Total test times */ | |
db0bd74a | 74 | cups_mode_t mode; /* Write mode */ |
ed486911 | 75 | |
76 | ||
db0bd74a MS |
77 | /* |
78 | * See if we have anything on the command-line... | |
79 | */ | |
80 | ||
81 | if (argc > 2 || (argc == 2 && strcmp(argv[1], "-z"))) | |
82 | { | |
83 | puts("Usage: rasterbench [-z]"); | |
84 | return (1); | |
85 | } | |
86 | ||
87 | mode = argc > 1 ? CUPS_RASTER_WRITE_COMPRESSED : CUPS_RASTER_WRITE; | |
88 | ||
ed486911 | 89 | /* |
90 | * Ignore SIGPIPE... | |
91 | */ | |
92 | ||
93 | signal(SIGPIPE, SIG_IGN); | |
94 | ||
95 | /* | |
96 | * Run the tests several times to get a good average... | |
97 | */ | |
98 | ||
99 | printf("Test read/write speed of %d pages, %dx%d pixels...\n\n", | |
100 | TEST_PAGES, TEST_WIDTH, TEST_HEIGHT); | |
101 | for (i = 0; i < TEST_PASSES; i ++) | |
102 | { | |
103 | printf("PASS %2d: ", i + 1); | |
104 | fflush(stdout); | |
105 | ||
106 | ras_fd = run_read_test(); | |
107 | start_secs = get_time(); | |
108 | ||
db0bd74a | 109 | write_test(ras_fd, mode); |
ed486911 | 110 | |
111 | write_secs = get_time(); | |
112 | printf(" %.3f write,", write_secs - start_secs); | |
113 | fflush(stdout); | |
114 | ||
115 | close(ras_fd); | |
116 | wait(&status); | |
117 | ||
118 | read_secs = get_time(); | |
119 | pass_secs[i] = read_secs - start_secs; | |
120 | printf(" %.3f read, %.3f total\n", read_secs - write_secs, pass_secs[i]); | |
121 | } | |
122 | ||
123 | printf("\nMedian Total Time: %.3f seconds per document\n", | |
124 | compute_median(pass_secs)); | |
125 | ||
126 | return (0); | |
127 | } | |
128 | ||
129 | ||
130 | /* | |
131 | * 'compute_median()' - Compute the median time for a test. | |
132 | */ | |
133 | ||
134 | static double /* O - Median time in seconds */ | |
135 | compute_median(double *secs) /* I - Array of time samples */ | |
136 | { | |
137 | int i, j; /* Looping vars */ | |
138 | double temp; /* Swap variable */ | |
139 | ||
140 | ||
141 | /* | |
142 | * Sort the array into ascending order using a quicky bubble sort... | |
143 | */ | |
144 | ||
145 | for (i = 0; i < (TEST_PASSES - 1); i ++) | |
146 | for (j = i + 1; j < TEST_PASSES; j ++) | |
147 | if (secs[i] > secs[j]) | |
148 | { | |
149 | temp = secs[i]; | |
150 | secs[i] = secs[j]; | |
151 | secs[j] = temp; | |
152 | } | |
153 | ||
154 | /* | |
155 | * Return the average of the middle two samples... | |
156 | */ | |
157 | ||
158 | return (0.5 * (secs[TEST_PASSES / 2 - 1] + secs[TEST_PASSES / 2])); | |
159 | } | |
160 | ||
161 | ||
162 | /* | |
163 | * 'get_time()' - Get the current time in seconds. | |
164 | */ | |
165 | ||
166 | static double /* O - Time in seconds */ | |
167 | get_time(void) | |
168 | { | |
169 | struct timeval curtime; /* Current time */ | |
170 | ||
171 | ||
172 | gettimeofday(&curtime, NULL); | |
173 | return (curtime.tv_sec + 0.000001 * curtime.tv_usec); | |
174 | } | |
175 | ||
176 | ||
177 | /* | |
178 | * 'read_test()' - Benchmark the raster read functions. | |
179 | */ | |
180 | ||
181 | static void | |
182 | read_test(int fd) /* I - File descriptor to read from */ | |
183 | { | |
184 | int y; /* Looping var */ | |
185 | cups_raster_t *r; /* Raster stream */ | |
db0bd74a | 186 | cups_page_header2_t header; /* Page header */ |
ed486911 | 187 | unsigned char buffer[8 * TEST_WIDTH]; |
188 | /* Read buffer */ | |
189 | ||
190 | ||
191 | /* | |
192 | * Test read speed... | |
193 | */ | |
194 | ||
195 | if ((r = cupsRasterOpen(fd, CUPS_RASTER_READ)) == NULL) | |
196 | { | |
197 | perror("Unable to create raster input stream"); | |
198 | return; | |
199 | } | |
200 | ||
db0bd74a | 201 | while (cupsRasterReadHeader2(r, &header)) |
ed486911 | 202 | { |
203 | for (y = 0; y < header.cupsHeight; y ++) | |
204 | cupsRasterReadPixels(r, buffer, header.cupsBytesPerLine); | |
205 | } | |
206 | ||
207 | cupsRasterClose(r); | |
208 | } | |
209 | ||
210 | ||
211 | /* | |
212 | * 'run_read_test()' - Run the read test as a child process via pipes. | |
213 | */ | |
214 | ||
215 | static int /* O - Standard input of child */ | |
216 | run_read_test(void) | |
217 | { | |
218 | int ras_pipes[2]; /* Raster data pipes */ | |
219 | int pid; /* Child process ID */ | |
220 | ||
221 | ||
222 | if (pipe(ras_pipes)) | |
223 | return (-1); | |
224 | ||
225 | if ((pid = fork()) < 0) | |
226 | { | |
227 | /* | |
228 | * Fork error - return -1 on error... | |
229 | */ | |
230 | ||
231 | close(ras_pipes[0]); | |
232 | close(ras_pipes[1]); | |
233 | ||
234 | return (-1); | |
235 | } | |
236 | else if (pid == 0) | |
237 | { | |
238 | /* | |
239 | * Child comes here - read data from the input pipe... | |
240 | */ | |
241 | ||
242 | close(ras_pipes[1]); | |
243 | read_test(ras_pipes[0]); | |
244 | exit(0); | |
245 | } | |
246 | else | |
247 | { | |
248 | /* | |
249 | * Parent comes here - return the output pipe... | |
250 | */ | |
251 | ||
252 | close(ras_pipes[0]); | |
253 | return (ras_pipes[1]); | |
254 | } | |
255 | } | |
256 | ||
257 | ||
258 | /* | |
259 | * 'write_test()' - Benchmark the raster write functions. | |
260 | */ | |
261 | ||
262 | static void | |
db0bd74a MS |
263 | write_test(int fd, /* I - File descriptor to write to */ |
264 | cups_mode_t mode) /* I - Write mode */ | |
ed486911 | 265 | { |
266 | int page, x, y; /* Looping vars */ | |
267 | int count; /* Number of bytes to set */ | |
268 | cups_raster_t *r; /* Raster stream */ | |
db0bd74a | 269 | cups_page_header2_t header; /* Page header */ |
ed486911 | 270 | unsigned char data[32][8 * TEST_WIDTH]; |
271 | /* Raster data to write */ | |
272 | ||
273 | ||
274 | /* | |
275 | * Create a combination of random data and repeated data to simulate | |
276 | * text with some whitespace. | |
277 | */ | |
278 | ||
41681883 | 279 | CUPS_SRAND(time(NULL)); |
ed486911 | 280 | |
281 | memset(data, 0, sizeof(data)); | |
282 | ||
283 | for (y = 0; y < 28; y ++) | |
284 | { | |
41681883 | 285 | for (x = CUPS_RAND() & 127, count = (CUPS_RAND() & 15) + 1; |
ed486911 | 286 | x < sizeof(data[0]); |
287 | x ++, count --) | |
288 | { | |
289 | if (count <= 0) | |
290 | { | |
41681883 MS |
291 | x += (CUPS_RAND() & 15) + 1; |
292 | count = (CUPS_RAND() & 15) + 1; | |
ed486911 | 293 | |
294 | if (x >= sizeof(data[0])) | |
295 | break; | |
296 | } | |
297 | ||
41681883 | 298 | data[y][x] = CUPS_RAND(); |
ed486911 | 299 | } |
300 | } | |
301 | ||
302 | /* | |
303 | * Test write speed... | |
304 | */ | |
305 | ||
db0bd74a | 306 | if ((r = cupsRasterOpen(fd, mode)) == NULL) |
ed486911 | 307 | { |
308 | perror("Unable to create raster output stream"); | |
309 | return; | |
310 | } | |
311 | ||
312 | for (page = 0; page < TEST_PAGES; page ++) | |
313 | { | |
314 | memset(&header, 0, sizeof(header)); | |
315 | header.cupsWidth = TEST_WIDTH; | |
316 | header.cupsHeight = TEST_HEIGHT; | |
317 | header.cupsBytesPerLine = TEST_WIDTH; | |
318 | ||
319 | if (page & 1) | |
320 | { | |
321 | header.cupsBytesPerLine *= 4; | |
322 | header.cupsColorSpace = CUPS_CSPACE_CMYK; | |
323 | header.cupsColorOrder = CUPS_ORDER_CHUNKED; | |
324 | } | |
325 | else | |
326 | { | |
327 | header.cupsColorSpace = CUPS_CSPACE_K; | |
328 | header.cupsColorOrder = CUPS_ORDER_BANDED; | |
329 | } | |
330 | ||
331 | if (page & 2) | |
332 | { | |
333 | header.cupsBytesPerLine *= 2; | |
334 | header.cupsBitsPerColor = 16; | |
335 | header.cupsBitsPerPixel = (page & 1) ? 64 : 16; | |
336 | } | |
337 | else | |
338 | { | |
339 | header.cupsBitsPerColor = 8; | |
340 | header.cupsBitsPerPixel = (page & 1) ? 32 : 8; | |
341 | } | |
342 | ||
db0bd74a | 343 | cupsRasterWriteHeader2(r, &header); |
ed486911 | 344 | |
345 | for (y = 0; y < TEST_HEIGHT; y ++) | |
346 | cupsRasterWritePixels(r, data[y & 31], header.cupsBytesPerLine); | |
347 | } | |
348 | ||
349 | cupsRasterClose(r); | |
350 | } | |
351 | ||
352 | ||
353 | /* | |
75bd9771 | 354 | * End of "$Id: rasterbench.c 7376 2008-03-19 21:07:45Z mike $". |
ed486911 | 355 | */ |