1 /* -----------------------------------------------------------------------------
2 * $Id: RtsFlags.h,v 1.23 2000/03/31 03:09:36 hwloidl Exp $
4 * (c) The GHC Team, 1998-1999
6 * Datatypes that holds the command-line flag settings.
8 * ---------------------------------------------------------------------------*/
13 /* For defaults, see the @initRtsFlagsDefaults@ routine. */
19 #define SUMMARY_GC_STATS 1
20 #define VERBOSE_GC_STATS 2
22 nat maxStkSize; /* in *words* */
23 nat initialStkSize; /* in *words* */
25 nat maxHeapSize; /* in *blocks* */
26 nat minAllocAreaSize; /* in *blocks* */
27 nat minOldGenSize; /* in *blocks* */
28 nat heapSizeSuggestion; /* in *blocks* */
35 rtsBool forceGC; /* force a major GC every <interval> bytes */
36 int forcingInterval; /* actually, stored as a number of *words* */
39 rtsBool squeezeUpdFrames;
42 /* Hack: this struct uses bitfields so that we can use a binary arg
44 * Remember to update the corresponding bit of RtsFlags.c if you
45 * change/extend this struct.
48 /* flags to control debugging output in various subsystems */
49 rtsBool scheduler : 1; /* 1 */
50 rtsBool evaluator : 1; /* 2 */
51 rtsBool codegen : 1; /* 4 */
52 rtsBool weak : 1; /* 8 */
53 rtsBool gccafs : 1; /* 16 */
54 rtsBool gc : 1; /* 32 */
55 rtsBool block_alloc : 1; /* 64 */
57 /* flags to control consistency checking (often very expensive!) */
58 rtsBool sanity : 1; /* 128 */
60 rtsBool stable : 1; /* 256 */
61 rtsBool prof : 1; /* 512 */
62 rtsBool gran : 1; /* 1024 */
63 rtsBool par : 1; /* 2048 */
66 #define MAX_DEBUG_OPTION 11
67 #define DEBUG_MASK(n) ((nat)(ldexp(1,n)))
68 #define MAX_DEBUG_MASK ((nat)(ldexp(1,(MAX_DEBUG_OPTION+1))-1))
70 #if defined(PROFILING) || defined(PAR)
71 /* with PROFILING, full cost-centre stuff (also PROFILING_FLAGS);
72 with PAR, just the four fixed cost-centres.
74 struct COST_CENTRE_FLAGS {
75 unsigned int doCostCentres;
76 # define COST_CENTRES_SUMMARY 1
77 # define COST_CENTRES_VERBOSE 2 /* incl. serial time profile */
78 # define COST_CENTRES_ALL 3
79 # define COST_CENTRES_XML 4
81 int ctxtSwitchTicks; /* derived */
82 int profilerTicks; /* derived */
83 int msecsPerTick; /* derived */
88 struct PROFILING_FLAGS {
89 unsigned int doHeapProfile;
91 # define NO_HEAP_PROFILING 0 /* N.B. Used as indexes into arrays */
92 # define HEAP_BY_CCS 1
93 # define HEAP_BY_MOD 2
94 # define HEAP_BY_DESCR 4
95 # define HEAP_BY_TYPE 5
96 # define HEAP_BY_TIME 6
98 rtsBool showCCSOnException;
102 # define DESCRchar 'D'
103 # define TYPEchar 'Y'
104 # define TIMEchar 'T'
113 # define NO_HEAP_PROFILING 0
114 # define HEAP_BY_INFOPTR 1
115 # define HEAP_BY_CLOSURE_TYPE 2
116 struct PROFILING_FLAGS {
117 unsigned int doHeapProfile; /* heap profile using symbol table */
119 #endif /* DEBUG || PROFILING */
121 struct CONCURRENT_FLAGS {
122 int ctxtSwitchTime; /* in milliseconds */
126 /* currently the same as GRAN_STATS_FLAGS */
127 struct PAR_STATS_FLAGS {
128 rtsBool Full; /* Full .gr profile (rtsTrue) or only END events? */
129 // rtsBool Suppressed; /* No .gr profile at all */
130 rtsBool Binary; /* Binary profile? (not yet implemented) */
131 rtsBool Sparks; /* Info on sparks in profile? */
132 rtsBool Heap; /* Info on heap allocs in profile? */
133 rtsBool NewLogfile; /* Use new log-file format? (not yet implemented) */
134 rtsBool Global; /* Global statistics? (printed on shutdown; no log file) */
137 struct PAR_DEBUG_FLAGS {
138 /* flags to control debugging output in various subsystems */
139 rtsBool verbose : 1; /* 1 */
140 rtsBool trace : 1; /* 2 */
141 rtsBool schedule : 1; /* 4 */
142 rtsBool free : 1; /* 8 */
143 rtsBool resume : 1; /* 16 */
144 rtsBool weight : 1; /* 32 */
145 rtsBool fetch : 1; /* 64 */
146 rtsBool fish : 1; /* 128 */
147 rtsBool tables : 1; /* 256 */
148 rtsBool packet : 1; /* 512 */
149 rtsBool pack : 1; /* 1024 */
152 #define MAX_PAR_DEBUG_OPTION 10
153 #define PAR_DEBUG_MASK(n) ((nat)(ldexp(1,n)))
154 #define MAX_PAR_DEBUG_MASK ((nat)(ldexp(1,(MAX_PAR_DEBUG_OPTION+1))-1))
157 struct PAR_STATS_FLAGS ParStats; /* profile and stats output */
158 struct PAR_DEBUG_FLAGS Debug; /* debugging options */
159 rtsBool outputDisabled; /* Disable output for performance purposes */
161 nat maxLocalSparks; /* spark pool size */
162 nat maxThreads; /* thread pool size */
163 nat maxFishes; /* max number of active fishes */
164 rtsTime fishDelay; /* delay before sending a new fish */
171 nat nNodes; /* number of threads to run simultaneously */
172 unsigned int maxLocalSparks;
177 struct GRAN_STATS_FLAGS {
178 rtsBool Full; /* Full .gr profile (rtsTrue) or only END events? */
179 rtsBool Suppressed; /* No .gr profile at all */
180 rtsBool Binary; /* Binary profile? (not yet implemented) */
181 rtsBool Sparks; /* Info on sparks in profile? */
182 rtsBool Heap; /* Info on heap allocs in profile? */
183 rtsBool NewLogfile; /* Use new log-file format? (not yet implemented) */
184 rtsBool Global; /* Global statistics? (printed on shutdown; no log file) */
187 struct GRAN_COST_FLAGS {
188 /* Communication Cost Variables -- set in main program */
189 nat latency; /* Latency for single packet */
190 nat additional_latency; /* Latency for additional packets */
192 nat lunblocktime; /* Time for local unblock */
193 nat gunblocktime; /* Time for global unblock */
194 nat mpacktime; /* Cost of creating a packet */
195 nat munpacktime; /* Cost of receiving a packet */
196 nat mtidytime; /* Cost of cleaning up after send */
198 nat threadcreatetime; /* Thread creation costs */
199 nat threadqueuetime; /* Cost of adding a thread to the running/runnable queue */
200 nat threaddescheduletime; /* Cost of descheduling a thread */
201 nat threadscheduletime; /* Cost of scheduling a thread */
202 nat threadcontextswitchtime; /* Cost of context switch */
204 /* Instruction Costs */
205 nat arith_cost; /* arithmetic instructions (+,i,< etc) */
206 nat branch_cost; /* branch instructions */
207 nat load_cost; /* load into register */
208 nat store_cost; /* store into memory */
209 nat float_cost; /* floating point operations */
211 nat heapalloc_cost; /* heap allocation costs */
213 /* Overhead for granularity control mechanisms */
214 /* overhead per elem of spark queue */
215 nat pri_spark_overhead;
216 /* overhead per elem of thread queue */
217 nat pri_sched_overhead;
220 struct GRAN_DEBUG_FLAGS {
221 /* flags to control debugging output in various subsystems */
222 rtsBool event_trace : 1; /* 1 */
223 rtsBool event_stats : 1; /* 2 */
224 rtsBool bq : 1; /* 4 */
225 rtsBool pack : 1; /* 8 */
226 rtsBool checkSparkQ : 1; /* 16 */
227 rtsBool thunkStealing : 1; /* 32 */
228 rtsBool randomSteal : 1; /* 64 */
229 rtsBool findWork : 1; /* 128 */
230 rtsBool unused : 1; /* 256 */
231 rtsBool pri : 1; /* 512 */
232 rtsBool checkLight : 1; /* 1024 */
233 rtsBool sortedQ : 1; /* 2048 */
234 rtsBool blockOnFetch : 1; /* 4096 */
235 rtsBool packBuffer : 1; /* 8192 */
236 rtsBool blockOnFetch_sanity : 1; /* 16384 */
239 #define MAX_GRAN_DEBUG_OPTION 14
240 #define GRAN_DEBUG_MASK(n) ((nat)(ldexp(1,n)))
241 #define MAX_GRAN_DEBUG_MASK ((nat)(ldexp(1,(MAX_GRAN_DEBUG_OPTION+1))-1))
244 struct GRAN_STATS_FLAGS GranSimStats; /* profile and stats output */
245 struct GRAN_COST_FLAGS Costs; /* cost metric for simulation */
246 struct GRAN_DEBUG_FLAGS Debug; /* debugging options */
248 nat maxThreads; // ToDo: share with SMP and GUM
249 // rtsBool labelling;
251 nat packBufferSize_internal;
253 PEs proc; /* number of processors */
254 rtsBool Fishing; /* Simulate GUM style fishing mechanism? */
255 nat maxFishes; /* max number of spark or thread steals */
256 rtsTime time_slice; /* max time slice of one reduction thread */
258 /* GrAnSim-Light: This version puts no bound on the number of
259 processors but in exchange doesn't model communication costs
260 (all communication is 0 cost). Mainly intended to show maximal
261 degree of parallelism in the program (*not* to simulate the
262 execution on a real machine). */
266 rtsBool DoFairSchedule ; /* fair scheduling alg? default: unfair */
267 rtsBool DoAsyncFetch; /* async. communication? */
268 rtsBool DoStealThreadsFirst; /* prefer threads over sparks when stealing */
269 rtsBool DoAlwaysCreateThreads; /* eager thread creation */
270 rtsBool DoBulkFetching; /* bulk fetching */
271 rtsBool DoThreadMigration; /* allow to move threads */
272 nat FetchStrategy; /* what to do when waiting for data */
273 rtsBool PreferSparksOfLocalNodes; /* prefer local over global sparks */
274 rtsBool DoPrioritySparking; /* sparks sorted by priorities */
275 rtsBool DoPriorityScheduling; /* threads sorted by priorities */
276 nat SparkPriority; /* threshold for cut-off mechanism */
278 rtsBool RandomPriorities;
279 rtsBool InversePriorities;
280 rtsBool IgnorePriorities;
281 nat ThunksToPack; /* number of thunks in packet + 1 */
282 rtsBool RandomSteal; /* steal spark/thread from random proc */
283 rtsBool NoForward; /* no forwarding of fetch messages */
285 // unsigned int debug;
286 // rtsBool event_trace;
287 // rtsBool event_trace_all;
293 rtsBool showTickyStats;
296 #endif /* TICKY_TICKY */
299 /* Put them together: */
302 struct GC_FLAGS GcFlags;
303 struct DEBUG_FLAGS DebugFlags;
304 struct CONCURRENT_FLAGS ConcFlags;
306 #if defined(PROFILING) || defined(PAR)
307 struct COST_CENTRE_FLAGS CcFlags;
309 #if defined(PROFILING) || defined(DEBUG)
310 struct PROFILING_FLAGS ProfFlags;
312 #if defined(SMP) || defined(PAR)
313 struct PAR_FLAGS ParFlags;
316 struct GRAN_FLAGS GranFlags;
319 struct TICKY_FLAGS TickyFlags;
323 #ifdef COMPILING_RTS_MAIN
324 extern DLLIMPORT struct RTS_FLAGS RtsFlags;
326 extern struct RTS_FLAGS RtsFlags;
329 /* Routines that operate-on/to-do-with RTS flags: */
331 void initRtsFlagsDefaults(void);
332 void setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[]);
335 * The printf formats are here, so we are less likely to make
336 * overly-long filenames (with disastrous results). No more than 128
340 #define STATS_FILENAME_MAXLEN 128
342 #define GR_FILENAME_FMT "%0.124s.gr"
343 #define GR_FILENAME_FMT_GUM "%0.120s.%03d.%s"
344 #define HP_FILENAME_FMT "%0.124s.hp"
345 #define LIFE_FILENAME_FMT "%0.122s.life"
346 #define PROF_FILENAME_FMT "%0.122s.prof"
347 #define PROF_FILENAME_FMT_GUM "%0.118s.%03d.prof"
348 #define QP_FILENAME_FMT "%0.124s.qp"
349 #define STAT_FILENAME_FMT "%0.122s.stat"
350 #define TICKY_FILENAME_FMT "%0.121s.ticky"
351 #define TIME_FILENAME_FMT "%0.122s.time"
352 #define TIME_FILENAME_FMT_GUM "%0.118s.%03d.time"
354 /* an "int" so as to match normal "argc" */
355 /* Now defined in Stg.h (lib/std/cbits need these too.)
356 extern int prog_argc;
357 extern char **prog_argv;
359 extern int rts_argc; /* ditto */
360 extern char *rts_argv[];
362 #endif /* RTSFLAGS_H */