postmark-1.53/0000755000175000017500000000000012006717033011103 5ustar nknkpostmark-1.53/postmark-1.53.c0000644000175000017500000013403407634410106013502 0ustar nknk/* Written by Jeffrey Katcher under contract to Network Appliance. Copyright (C) 1997-2001 Network Appliance, Inc. This code has been successfully compiled and run by Network Appliance on various platforms, including Solaris 2 on an Ultra-170, and Windows NT on a Compaq ProLiant. However, this PostMark source code is distributed under the Artistic License appended to the end of this file. As such, no support is provided. However, please report any errors to the author, Jeffrey Katcher , or to Andy Watson . Versions: 1.00 - Original release - 8/17/97 1.01 - Fixed endless loop on EOF, Divide by zero when file_size_high=file_size_low - 10/29/97 (Thanks to Chuck Murnane) 1.1 - Added new commands to distribute work across multiple directories and/or file systems and multiple work subdirectories. Changed set location command (+,-) to allow file systems & weights Added set subdirectories command and code to distribute work across multiple subdirectories Added file redirect to show and run commands Improved help system - 4/8/98 1.11 - Fixed unfortunate problem where read_file opens in append mode thus avoiding actual reads. (Thanks to Kent Peacock) 1.12 - Changed bytes read and written to float. Hopefully this will avoid overflow when very large file sizes are used. 1.13 - Added terse report option allowing results to be easily included in other things. (Thanks to Walter Wong) Also tweaked help code to allow partial matches 1.14 - Automatically stop run if work files are depleted 1.5 - Many people (most recently Michael Flaster) have emphasized that the pseudo-random number generator was more pseudo than random. After a review of the literature and extensive benchmarking, I've replaced the previous PRNG with the Mersenne Twister. While an excellent PRNG, it retains much of the performance of the previous implementation. URL: http://www.math.keio.ac.jp/~matumoto/emt.html Also changed MB definition to 1024KB, tweaked show command 1.51 - Added command to load config file from CLI 1.52 - Fixed error in time base for terse report. (Thanks to Collin Park) 1.53 - Fixed error in report of deleted files (Thanks to Alf Wachsmann) */ #include #include #include #include #include #define PM_VERSION "v1.51 : 8/14/01" #ifdef _WIN32 #include #include #define GETWD(x) getcwd(x,MAX_LINE) #define MKDIR(x) mkdir(x) #define SEPARATOR "\\" #else extern char *getwd(); #define GETWD(x) getwd(x) #define MKDIR(x) mkdir(x,0700) #define SEPARATOR "/" #endif #define MAX_LINE 255 #define MAX_FILENAME 80 #define KILOBYTE 1024 #define MEGABYTE (KILOBYTE*KILOBYTE) #define PROMPT "pm>" typedef struct { /* ADT for table of CLI commands */ char *name; /* name of command */ int (*func)(); /* pointer to callback function */ char *help; /* descriptive help string */ } cmd; extern int cli_set_size(); extern int cli_set_number(); extern int cli_set_seed(); extern int cli_set_transactions(); extern int cli_set_location(); extern int cli_set_subdirs(); extern int cli_set_read(); extern int cli_set_write(); extern int cli_set_buffering(); extern int cli_set_bias_read(); extern int cli_set_bias_create(); extern int cli_set_report(); extern int cli_run(); extern int cli_load(); extern int cli_show(); extern int cli_help(); extern int cli_quit(); cmd command_list[]={ /* table of CLI commands */ {"set size",cli_set_size,"Sets low and high bounds of files"}, {"set number",cli_set_number,"Sets number of simultaneous files"}, {"set seed",cli_set_seed,"Sets seed for random number generator"}, {"set transactions",cli_set_transactions,"Sets number of transactions"}, {"set location",cli_set_location,"Sets location of working files"}, {"set subdirectories",cli_set_subdirs,"Sets number of subdirectories"}, {"set read",cli_set_read,"Sets read block size"}, {"set write",cli_set_write,"Sets write block size"}, {"set buffering",cli_set_buffering,"Sets usage of buffered I/O"}, {"set bias read",cli_set_bias_read, "Sets the chance of choosing read over append"}, {"set bias create",cli_set_bias_create, "Sets the chance of choosing create over delete"}, {"set report",cli_set_report,"Choose verbose or terse report format"}, {"run",cli_run,"Runs one iteration of benchmark"}, {"load",cli_load,"Read configuration file"}, {"show",cli_show,"Displays current configuration"}, {"help",cli_help,"Prints out available commands"}, {"quit",cli_quit,"Exit program"}, NULL }; extern void verbose_report(); extern void terse_report(); void (*reports[])()={verbose_report,terse_report}; /* Counters */ int files_created; /* number of files created */ int files_deleted; /* number of files deleted */ int files_read; /* number of files read */ int files_appended; /* number of files appended */ float bytes_written; /* number of bytes written to files */ float bytes_read; /* number of bytes read from files */ /* Configurable Parameters */ int file_size_low=500; int file_size_high=10000; /* file size: fixed or random within range */ int simultaneous=500; /* simultaneous files */ int seed=42; /* random number generator seed */ int transactions=500; /* number of transactions */ int subdirectories=0; /* Number of subdirectories */ int read_block_size=512; /* I/O block sizes */ int write_block_size=512; int bias_read=5; /* chance of picking read over append */ int bias_create=5; /* chance of picking create over delete */ int buffered_io=1; /* use C library buffered I/O */ int report=0; /* 0=verbose, 1=terse report format */ /* Working Storage */ char *file_source; /* pointer to buffer of random text */ typedef struct { char name[MAX_FILENAME+1]; /* name of individual file */ int size; /* current size of file, 0 = unused file slot */ } file_entry; file_entry *file_table; /* table of files in use */ int file_allocated; /* pointer to last allocated slot in file_table */ typedef struct file_system_struct { file_entry system; struct file_system_struct *next,*prev; } file_system; file_system *file_systems; /* table of file systems/directories to use */ int file_system_weight; /* sum of weights for all file systems */ int file_system_count; /* number of configured file systems */ char **location_index; /* weighted index of file systems */ char *read_buffer; /* temporary space for reading file data into */ #define RND(x) ((x>0)?(genrand() % (x)):0) extern unsigned long genrand(); extern void sgenrand(); /* converts integer values to byte/kilobyte/megabyte strings */ char *scale(i) int i; { static char buffer[MAX_LINE]; /* storage for current conversion */ if (i/MEGABYTE) sprintf(buffer,"%.2f megabytes",(float)i/MEGABYTE); else if (i/KILOBYTE) sprintf(buffer,"%.2f kilobytes",(float)i/KILOBYTE); else sprintf(buffer,"%d bytes",i); return(buffer); } /* converts float values to byte/kilobyte/megabyte strings */ char *scalef(i) float i; { static char buffer[MAX_LINE]; /* storage for current conversion */ if (i/(float)MEGABYTE>1) sprintf(buffer,"%.2f megabytes",i/(float)MEGABYTE); else if (i/(float)KILOBYTE) sprintf(buffer,"%.2f kilobytes",i/(float)KILOBYTE); else sprintf(buffer,"%f bytes",i); return(buffer); } /* UI callback for 'set size' command - sets range of file sizes */ int cli_set_size(param) char *param; /* remainder of command line */ { char *token; int size; if (param && (size=atoi(param))>0) { file_size_low=size; if ((token=strchr(param,' ')) && (size=atoi(token))>0 && size>=file_size_low) file_size_high=size; else file_size_high=file_size_low; } else fprintf(stderr,"Error: no file size low or high bounds specified\n"); return(1); } int cli_generic_int(var,param,error) int *var; /* pointer to variable to set */ char *param; /* remainder of command line */ char *error; /* error message */ { int value; if (param && (value=atoi(param))>0) *var=value; else fprintf(stderr,"Error: %s\n",error); return(1); } /* UI callback for 'set number' command - sets number of files to create */ int cli_set_number(param) char *param; /* remainder of command line */ { return(cli_generic_int(&simultaneous,param,"invalid number of files")); } /* UI callback for 'set seed' command - initial value for random number gen */ int cli_set_seed(param) char *param; /* remainder of command line */ { return(cli_generic_int(&seed,param,"invalid seed for random numbers")); } /* UI callback for 'set transactions' - configure number of transactions */ int cli_set_transactions(param) char *param; /* remainder of command line */ { return(cli_generic_int(&transactions,param,"no transactions specified")); } int parse_weight(params) char *params; { int weight=1; char *split; if (split=strrchr(params,' ')) { *split='\0'; if ((weight=atoi(split+1))<=0) { fprintf(stderr,"Error: ignoring invalid weight '%s'\n",split+1); weight=1; } } return(weight); } void add_location(params,weight) char *params; int weight; { file_system *new_file_system; if (new_file_system=(file_system *)calloc(1,sizeof(file_system))) { strcpy(new_file_system->system.name,params); new_file_system->system.size=weight; if (file_systems) { new_file_system->prev=file_systems->prev; file_systems->prev->next=new_file_system; file_systems->prev=new_file_system; } else { new_file_system->prev=new_file_system; file_systems=new_file_system; } file_system_weight+=weight; file_system_count++; } } void delete_location(loc_name) char *loc_name; { file_system *traverse; for (traverse=file_systems; traverse; traverse=traverse->next) if (!strcmp(traverse->system.name,loc_name)) { file_system_weight-=traverse->system.size; file_system_count--; if (file_systems->prev==file_systems) { free(file_systems); file_systems=NULL; } else { if (file_systems->prev==traverse) file_systems->prev=traverse->prev; if (traverse==file_systems) file_systems=file_systems->next; else traverse->prev->next=traverse->next; if (traverse->next) traverse->next->prev=traverse->prev; free(traverse); } break; } if (!traverse) fprintf(stderr,"Error: cannot find location '%s'\n",loc_name); } void delete_locations() { file_system *next; while (file_systems) { next=file_systems->next; free(file_systems); file_systems=next; } file_system_weight=0; file_system_count=0; } /* UI callback for 'set location' - configure current working directory */ int cli_set_location(param) char *param; /* remainder of command line */ { if (param) { switch (*param) { case '+': /* add location to list */ add_location(param+1,parse_weight(param+1)); break; case '-': /* remove location from list */ delete_location(param+1); break; default: delete_locations(); add_location(param,parse_weight(param)); } } else fprintf(stderr,"Error: no directory name specified\n"); return(1); } /* UI callback for 'set subdirectories' - configure number of subdirectories */ int cli_set_subdirs(param) char *param; /* remainder of command line */ { return(cli_generic_int(&subdirectories,param, "invalid number of subdirectories")); } /* UI callback for 'set read' - configure read block size (integer) */ int cli_set_read(param) char *param; /* remainder of command line */ { return(cli_generic_int(&read_block_size,param,"invalid read block size")); } /* UI callback for 'set write' - configure write block size (integer) */ int cli_set_write(param) char *param; /* remainder of command line */ { return(cli_generic_int(&write_block_size,param,"invalid write block size")); } /* UI callback for 'set buffering' - sets buffering mode on or off - true = buffered I/O (default), false = raw I/O */ int cli_set_buffering(param) char *param; /* remainder of command line */ { if (param && (!strcmp(param,"true") || !strcmp(param,"false"))) buffered_io=(!strcmp(param,"true"))?1:0; else fprintf(stderr,"Error: no buffering mode (true/false) specified\n"); return(1); } /* UI callback for 'set bias read' - sets probability of read vs. append */ int cli_set_bias_read(param) char *param; /* remainder of command line */ { int value; if (param && (value=atoi(param))>=-1 && value<=10) bias_read=value; else fprintf(stderr, "Error: no bias specified (0-10 for greater chance,-1 to disable)\n"); return(1); } /* UI callback for 'set bias create' - sets probability of create vs. delete */ int cli_set_bias_create(param) char *param; /* remainder of command line */ { int value; if (param && (value=atoi(param))>=-1 && value<=10) bias_create=value; else fprintf(stderr, "Error: no bias specified (0-10 for greater chance,-1 to disable)\n"); return(1); } /* UI callback for 'set report' - chooses verbose or terse report formats */ int cli_set_report(param) char *param; /* remainder of command line */ { int match=0; if (param) { if (!strcmp(param,"verbose")) report=0; else if (!strcmp(param,"terse")) report=1; else match=-1; } if (!param || match==-1) fprintf(stderr,"Error: either 'verbose' or 'terse' required\n"); return(1); } /* populate file source buffer with 'size' bytes of readable randomness */ char *initialize_file_source(size) int size; /* number of bytes of junk to create */ { char *new_source; int i; if ((new_source=(char *)malloc(size))==NULL) /* allocate buffer */ fprintf(stderr,"Error: failed to allocate source file of size %d\n",size); else for (i=0; i=write_block_size; i-=write_block_size,offset+=write_block_size) write(fd,file_source+offset,write_block_size); write(fd,file_source+offset,i); /* write remainder */ bytes_written+=size; /* update counter */ close(fd); } /* write 'size' bytes to file 'fp' using buffered I/O and close file */ void fwrite_blocks(fp,size) FILE *fp; int size; /* bytes to write to file */ { int offset=0; /* offset into file */ int i; /* write even blocks */ for (i=size; i>=write_block_size; i-=write_block_size,offset+=write_block_size) fwrite(file_source+offset,write_block_size,1,fp); fwrite(file_source+offset,i,1,fp); /* write remainder */ bytes_written+=size; /* update counter */ fclose(fp); } void create_file_name(dest) char *dest; { char conversion[MAX_LINE+1]; *dest='\0'; if (file_system_count) { strcat(dest, location_index[(file_system_count==1)?0:RND(file_system_weight)]); strcat(dest,SEPARATOR); } if (subdirectories>1) { sprintf(conversion,"s%d%s",RND(subdirectories),SEPARATOR); strcat(dest,conversion); } sprintf(conversion,"%d",++files_created); strcat(dest,conversion); } /* creates new file of specified length and fills it with data */ void create_file(buffered) int buffered; /* 1=buffered I/O (default), 0=unbuffered I/O */ { FILE *fp=NULL; int fd=-1; int free_file; /* file_table slot for new file */ if ((free_file=find_free_file())!=-1) /* if file space is available */ { /* decide on name and initial length */ create_file_name(file_table[free_file].name); file_table[free_file].size= file_size_low+RND(file_size_high-file_size_low); if (buffered) fp=fopen(file_table[free_file].name,"w"); else fd=open(file_table[free_file].name,O_RDWR|O_CREAT,0644); if (fp || fd!=-1) { if (buffered) fwrite_blocks(fp,file_table[free_file].size); else write_blocks(fd,file_table[free_file].size); } else fprintf(stderr,"Error: cannot open '%s' for writing\n", file_table[free_file].name); } } /* deletes specified file from disk and file_table */ void delete_file(number) int number; { if (file_table[number].size) { if (remove(file_table[number].name)) fprintf(stderr,"Error: Cannot delete '%s'\n",file_table[number].name); else { /* reset entry in file_table and update counter */ file_table[number].size=0; files_deleted++; } } } /* reads entire specified file into temporary buffer */ void read_file(number,buffered) int number; /* number of file to read (from file_table) */ int buffered; /* 1=buffered I/O (default), 0=unbuffered I/O */ { FILE *fp=NULL; int fd=-1; int i; if (buffered) fp=fopen(file_table[number].name,"r"); else fd=open(file_table[number].name,O_RDONLY,0644); if (fp || fd!=-1) { /* read as many blocks as possible then read the remainder */ if (buffered) { for (i=file_table[number].size; i>=read_block_size; i-=read_block_size) fread(read_buffer,read_block_size,1,fp); fread(read_buffer,i,1,fp); fclose(fp); } else { for (i=file_table[number].size; i>=read_block_size; i-=read_block_size) read(fd,read_buffer,read_block_size); read(fd,read_buffer,i); close(fd); } /* increment counters to record transaction */ bytes_read+=file_table[number].size; files_read++; } else fprintf(stderr,"Error: cannot open '%s' for reading\n", file_table[number].name); } /* appends random data to a chosen file up to the maximum configured length */ void append_file(number,buffered) int number; /* number of file (from file_table) to append date to */ int buffered; /* 1=buffered I/O (default), 0=unbuffered I/O */ { FILE *fp=NULL; int fd=-1; int block; /* size of data to append */ if (file_table[number].sizenext) for (count=0; countsystem.size; count++) index[i++]=list->system.name; return(index); } void create_subdirectories(dir_list,base_dir,subdirs) file_system *dir_list; char *base_dir; int subdirs; { char dir_name[MAX_LINE+1]; /* buffer holding subdirectory names */ char save_dir[MAX_LINE+1]; int i; if (dir_list) { for (; dir_list; dir_list=dir_list->next) create_subdirectories(NULL,dir_list->system.name,subdirs); } else { if (base_dir) sprintf(save_dir,"%s%s",base_dir,SEPARATOR); else *save_dir='\0'; for (i=0; inext) delete_subdirectories(NULL,dir_list->system.name,subdirs); } else { if (base_dir) sprintf(save_dir,"%s%s",base_dir,SEPARATOR); else *save_dir='\0'; for (i=0; i0) location_index=build_location_index(file_systems,file_system_weight); /* create subdirectories if necessary */ if (subdirectories>1) { printf("Creating subdirectories..."); fflush(stdout); create_subdirectories(file_systems,NULL,subdirectories); printf("Done\n"); } time(&start_time); /* store start time */ /* create files in specified directory until simultaneous number */ printf("Creating files..."); fflush(stdout); for (i=0; i1) { printf("Deleting subdirectories..."); fflush(stdout); delete_subdirectories(file_systems,NULL,subdirectories); printf("Done\n"); } if (location_index) { free(location_index); location_index=NULL; } if (param) if ((fp=fopen(param,"a"))==NULL) fprintf(stderr,"Error: Cannot direct output to file '%s'\n",param); if (!fp) fp=stdout; if (!incomplete) reports[report](fp,end_time,start_time,t_end_time,t_start_time, files_deleted-delete_base); if (param && fp!=stdout) fclose(fp); /* free resources allocated for this run */ free(file_table); free(read_buffer); free(file_source); return(1); /* return 1 unless exit requested, then return 0 */ } /* CLI callback for 'load' - read configuration file */ int cli_load(param) char *param; { char buffer[MAX_LINE+1]; /* storage for input command line */ if (param) read_config_file(param,buffer,0); else fprintf(stderr,"Error: no configuration file specified\n"); return(1); /* return 1 unless exit requested, then return 0 */ } /* CLI callback for 'show' - print values of configuration variables */ int cli_show(param) char *param; /* optional: name of output file */ { char current_dir[MAX_LINE+1]; /* buffer containing working directory */ file_system *traverse; FILE *fp=NULL; /* file descriptor for directing output */ if (param) if ((fp=fopen(param,"a"))==NULL) fprintf(stderr,"Error: Cannot direct output to file '%s'\n",param); if (!fp) fp=stdout; fprintf(fp,"Current configuration is:\n"); fprintf(fp,"The base number of files is %d\n",simultaneous); fprintf(fp,"Transactions: %d\n",transactions); if (file_size_low!=file_size_high) { fprintf(fp,"Files range between %s ",scale(file_size_low)); fprintf(fp,"and %s in size\n",scale(file_size_high)); } else fprintf(fp,"Files are %s in size\n",scale(file_size_low)); fprintf(fp,"Working director%s: %s\n",(file_system_count>1)?"ies":"y", (file_system_count==0)?GETWD(current_dir):""); for (traverse=file_systems; traverse; traverse=traverse->next) printf("\t%s (weight=%d)\n",traverse->system.name,traverse->system.size); if (subdirectories>0) fprintf(fp,"%d subdirector%s will be used\n",subdirectories, (subdirectories==1)?"y":"ies"); fprintf(fp,"Block sizes are: read=%s, ",scale(read_block_size)); fprintf(fp,"write=%s\n",scale(write_block_size)); fprintf(fp,"Biases are: read/append=%d, create/delete=%d\n",bias_read, bias_create); fprintf(fp,"%ssing Unix buffered file I/O\n",buffered_io?"U":"Not u"); fprintf(fp,"Random number generator seed is %d\n",seed); fprintf(fp,"Report format is %s.\n",report?"terse":"verbose"); if (param && fp!=stdout) fclose(fp); return(1); /* return 1 unless exit requested, then return 0 */ } /* CLI callback for 'quit' - returns 0 causing UI to exit */ int cli_quit(param) /* none */ char *param; /* unused */ { return(0); /* return 1 unless exit requested, then return 0 */ } /* CLI callback for 'help' - prints help strings from command_list */ int cli_help(param) char *param; /* optional: specific command to get help for */ { int n=0; /* number of matching items */ int i; /* traversal variable for command table */ int len; if (param && (len=strlen(param))>0) /* if a command is specified... */ for (i=0; command_list[i].name; i++) /* walk command table */ if (!strncmp(command_list[i].name,param,len)) { printf("%s - %s\n",command_list[i].name,command_list[i].help); n++; } if (!param || !n) for (i=0; command_list[i].name; i++) /* traverse command table */ printf("%s - %s\n",command_list[i].name,command_list[i].help); return(1); /* return 1 unless exit requested, then return 0 */ } /* read CLI line from user, translate aliases if any, return fgets status */ char *cli_read_line(buffer,size) char *buffer; /* empty input line */ int size; { char *result; printf("%s",PROMPT); /* print prompt */ fflush(stdout); /* force prompt to print */ if (result=fgets(buffer,size,stdin)) /* read line safely */ { buffer[strlen(buffer)-1]='\0'; /* delete final CR */ if (!strcmp(buffer,"?")) /* translate aliases */ strcpy(buffer,"help"); if (!strcmp(buffer,"exit")) strcpy(buffer,"quit"); } return(result); /* return success of fgets */ } /* parse CLI input line */ int cli_parse_line(buffer) char *buffer; /* line of user input */ { int result=1; /* default return status */ int len; /* length of parsed command */ int i; /* traversal variable for command table */ if (*buffer=='!') /* check for shell escape */ system((strlen(buffer)>1)?buffer+1:getenv("SHELL")); else { for (i=0; command_list[i].name; i++) /* walk command table */ if (!strncmp(command_list[i].name,buffer, len=strlen(command_list[i].name))) { /* if command matches... */ result=(command_list[i].func) (((int)strlen(buffer)>len)?buffer+len+1:NULL); break; /* call function and pass remainder of line as parameter */ } if (!command_list[i].name) /* if no commands were called... */ printf("Eh?\n"); /* tribute to Canadian diction */ } return(result); /* return 1 unless exit requested, then return 0 */ } /* read config file if present and process it line by line - if 'quit' is in file then function returns 0 */ int read_config_file(filename,buffer,ignore) char *filename; /* file name of config file */ char *buffer; /* temp storage for each line read from file */ int ignore; /* ignore file not found */ { int result=1; /* default exit value - proceed with UI */ FILE *fp; if (fp=fopen(filename,"r")) /* open config file */ { printf("Reading configuration from file '%s'\n",filename); while (fgets(buffer,MAX_LINE,fp) && result) /* read lines until 'quit' */ { buffer[strlen(buffer)-1]='\0'; /* delete final CR */ result=cli_parse_line(buffer); /* process line as typed in */ } fclose(fp); } else if (!ignore) fprintf(stderr,"Error: cannot read configuration file '%s'\n", filename); return(result); } /* main function - reads config files then enters get line/parse line loop */ main(argc,argv) int argc; char *argv[]; { char buffer[MAX_LINE+1]; /* storage for input command line */ printf("PostMark %s\n",PM_VERSION); if (read_config_file((argc==2)?argv[1]:".pmrc",buffer,1)) while (cli_read_line(buffer,MAX_LINE) && cli_parse_line(buffer)) ; } /* The "Artistic License" Preamble The intent of this document is to state the conditions under which a Package may be copied, such that the Copyright Holder maintains some semblance of artistic control over the development of the package, while giving the users of the package the right to use and distribute the Package in a more-or-less customary fashion, plus the right to make reasonable modifications. 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If such scripts or library files are aggregated with this Package via the so-called "undump" or "unexec" methods of producing a binary executable image, then distribution of such an image shall neither be construed as a distribution of this Package nor shall it fall under the restrictions of Paragraphs 3 and 4, provided that you do not represent such an executable image as a Standard Version of this Package. 7. C subroutines (or comparably compiled subroutines in other languages) supplied by you and linked into this Package in order to emulate subroutines and variables of the language defined by this Package shall not be considered part of this Package, but are the equivalent of input as in Paragraph 6, provided these subroutines do not change the language in any way that would cause it to fail the regression tests for the language. 8. Aggregation of this Package with a commercial distribution is always permitted provided that the use of this Package is embedded; that is, when no overt attempt is made to make this Package's interfaces visible to the end user of the commercial distribution. Such use shall not be construed as a distribution of this Package. 9. The name of the Copyright Holder may not be used to endorse or promote products derived from this software without specific prior written permission. 10. THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. The End */ /* A C-program for MT19937: Integer version (1999/10/28) */ /* genrand() generates one pseudorandom unsigned integer (32bit) */ /* which is uniformly distributed among 0 to 2^32-1 for each */ /* call. sgenrand(seed) sets initial values to the working area */ /* of 624 words. Before genrand(), sgenrand(seed) must be */ /* called once. (seed is any 32-bit integer.) */ /* Coded by Takuji Nishimura, considering the suggestions by */ /* Topher Cooper and Marc Rieffel in July-Aug. 1997. */ /* This library is free software; you can redistribute it and/or */ /* modify it under the terms of the GNU Library General Public */ /* License as published by the Free Software Foundation; either */ /* version 2 of the License, or (at your option) any later */ /* version. */ /* This library is distributed in the hope that it will be useful, */ /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. */ /* See the GNU Library General Public License for more details. */ /* You should have received a copy of the GNU Library General */ /* Public License along with this library; if not, write to the */ /* Free Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA */ /* 02111-1307 USA */ /* Copyright (C) 1997, 1999 Makoto Matsumoto and Takuji Nishimura. */ /* Any feedback is very welcome. For any question, comments, */ /* see http://www.math.keio.ac.jp/matumoto/emt.html or email */ /* matumoto@math.keio.ac.jp */ /* REFERENCE */ /* M. Matsumoto and T. Nishimura, */ /* "Mersenne Twister: A 623-Dimensionally Equidistributed Uniform */ /* Pseudo-Random Number Generator", */ /* ACM Transactions on Modeling and Computer Simulation, */ /* Vol. 8, No. 1, January 1998, pp 3--30. */ /* Period parameters */ #define N 624 #define M 397 #define MATRIX_A 0x9908b0df /* constant vector a */ #define UPPER_MASK 0x80000000 /* most significant w-r bits */ #define LOWER_MASK 0x7fffffff /* least significant r bits */ /* Tempering parameters */ #define TEMPERING_MASK_B 0x9d2c5680 #define TEMPERING_MASK_C 0xefc60000 #define TEMPERING_SHIFT_U(y) (y >> 11) #define TEMPERING_SHIFT_S(y) (y << 7) #define TEMPERING_SHIFT_T(y) (y << 15) #define TEMPERING_SHIFT_L(y) (y >> 18) static unsigned long mt[N]; /* the array for the state vector */ static int mti=N+1; /* mti==N+1 means mt[N] is not initialized */ /* Initializing the array with a seed */ void sgenrand(seed) unsigned long seed; { int i; for (i=0;i> 16; seed = 69069 * seed + 1; } mti = N; } /* Initialization by "sgenrand()" is an example. Theoretically, */ /* there are 2^19937-1 possible states as an intial state. */ /* This function allows to choose any of 2^19937-1 ones. */ /* Essential bits in "seed_array[]" is following 19937 bits: */ /* (seed_array[0]&UPPER_MASK), seed_array[1], ..., seed_array[N-1]. */ /* (seed_array[0]&LOWER_MASK) is discarded. */ /* Theoretically, */ /* (seed_array[0]&UPPER_MASK), seed_array[1], ..., seed_array[N-1] */ /* can take any values except all zeros. */ void lsgenrand(seed_array) unsigned long seed_array[]; /* the length of seed_array[] must be at least N */ { int i; for (i=0;i= N) { /* generate N words at one time */ int kk; if (mti == N+1) /* if sgenrand() has not been called, */ sgenrand(4357); /* a default initial seed is used */ for (kk=0;kk> 1) ^ mag01[y & 0x1]; } for (;kk> 1) ^ mag01[y & 0x1]; } y = (mt[N-1]&UPPER_MASK)|(mt[0]&LOWER_MASK); mt[N-1] = mt[M-1] ^ (y >> 1) ^ mag01[y & 0x1]; mti = 0; } y = mt[mti++]; y ^= TEMPERING_SHIFT_U(y); y ^= TEMPERING_SHIFT_S(y) & TEMPERING_MASK_B; y ^= TEMPERING_SHIFT_T(y) & TEMPERING_MASK_C; y ^= TEMPERING_SHIFT_L(y); return y; } postmark-1.53/postmark.10000644000175000017500000000130412006714455013030 0ustar nknk.TH "POSTMARK" "1" "2001-09-13" "russell@coker.com.au" "Postmark" .SH "NAME" postmark \- file system benchmark program by NetApp. .SH "SYNOPSIS" .B postmark .RI [config-file] .SH "DESCRIPTION" This manual page documents briefly the .B postmark program. .P When .B postmark is run it gives a command\-line interface to configure and run tests. The "help" command displays basic information on how to operate it. .P The name of a text file containing commands may be specified on the command line. .P The next version of this man page will have more information. .SH "AUTHOR" This manual page was written by Russell Coker , for the Debian GNU/Linux system (but may be used by others). postmark-1.53/Makefile0000644000175000017500000000056212006716647012560 0ustar nknk PROGRAMS=postmark all: $(PROGRAMS) CC=gcc -O2 -g -Wall -pipe MAINSRC=postmark-1.53.c postmark: $(MAINSRC) $(CC) $(MAINSRC) $(OBJS) -o postmark $(LFLAGS) install: mkdir -p $(DESTDIR)/usr/bin strip postmark cp $(PROGRAMS) $(DESTDIR)/usr/bin %.o: %.cpp %.h $(CC) -c $< -o $@ clean: rm -f $(PROGRAMS) build-stamp install-stamp build rm -rf debian/tmp err out