1 a0d146ed 2005-07-12 devnull #include "stdinc.h"
  2 a0d146ed 2005-07-12 devnull #include "dat.h"
  3 a0d146ed 2005-07-12 devnull #include "fns.h"
  4 a0d146ed 2005-07-12 devnull 
  5 a0d146ed 2005-07-12 devnull int	count[VtMaxLumpSize][VtMaxType];
  6 a0d146ed 2005-07-12 devnull Config conf;
  7 a0d146ed 2005-07-12 devnull 
  8 a0d146ed 2005-07-12 devnull enum
  9 a0d146ed 2005-07-12 devnull {
 10 a0d146ed 2005-07-12 devnull 	ClumpChunks	= 32*1024
 11 a0d146ed 2005-07-12 devnull };
 12 a0d146ed 2005-07-12 devnull 
 13 a0d146ed 2005-07-12 devnull static int
 14 a0d146ed 2005-07-12 devnull readarenainfo(Arena *arena)
 15 a0d146ed 2005-07-12 devnull {
 16 a0d146ed 2005-07-12 devnull 	ClumpInfo *ci, *cis;
 17 a0d146ed 2005-07-12 devnull 	u32int clump;
 18 a0d146ed 2005-07-12 devnull 	int i, n, ok;
 19 a0d146ed 2005-07-12 devnull 
 20 a0d146ed 2005-07-12 devnull 	if(arena->memstats.clumps)
 21 a0d146ed 2005-07-12 devnull 		fprint(2, "reading directory for arena=%s with %d entries\n", arena->name, arena->memstats.clumps);
 22 a0d146ed 2005-07-12 devnull 
 23 a0d146ed 2005-07-12 devnull 	cis = MKN(ClumpInfo, ClumpChunks);
 24 a0d146ed 2005-07-12 devnull 	ok = 0;
 25 a0d146ed 2005-07-12 devnull 	for(clump = 0; clump < arena->memstats.clumps; clump += n){
 26 a0d146ed 2005-07-12 devnull 		n = ClumpChunks;
 27 a0d146ed 2005-07-12 devnull 
 28 a0d146ed 2005-07-12 devnull 		if(n > arena->memstats.clumps - clump)
 29 a0d146ed 2005-07-12 devnull 			n = arena->memstats.clumps - clump;
 30 a0d146ed 2005-07-12 devnull 
 31 a0d146ed 2005-07-12 devnull 		if((i=readclumpinfos(arena, clump, cis, n)) != n){
 32 a0d146ed 2005-07-12 devnull 			seterr(EOk, "arena directory read failed %d not %d: %r", i, n);
 33 a0d146ed 2005-07-12 devnull 			ok = -1;
 34 a0d146ed 2005-07-12 devnull 			break;
 35 a0d146ed 2005-07-12 devnull 		}
 36 a0d146ed 2005-07-12 devnull 
 37 a0d146ed 2005-07-12 devnull 		for(i = 0; i < n; i++){
 38 a0d146ed 2005-07-12 devnull 			ci = &cis[i];
 39 a0d146ed 2005-07-12 devnull 			if(ci->type >= VtMaxType || ci->uncsize >= VtMaxLumpSize) {
 40 a0d146ed 2005-07-12 devnull 				fprint(2, "bad clump: %d: type = %d: size = %d\n", clump+i, ci->type, ci->uncsize);
 41 a0d146ed 2005-07-12 devnull 				continue;
 42 a0d146ed 2005-07-12 devnull 			}
 43 a0d146ed 2005-07-12 devnull 			count[ci->uncsize][ci->type]++;
 44 a0d146ed 2005-07-12 devnull 		}
 45 a0d146ed 2005-07-12 devnull 	}
 46 a0d146ed 2005-07-12 devnull 	free(cis);
 47 a0d146ed 2005-07-12 devnull 	if(ok < 0)
 48 a0d146ed 2005-07-12 devnull 		return TWID32;
 49 a0d146ed 2005-07-12 devnull 	return clump;
 50 a0d146ed 2005-07-12 devnull }
 51 a0d146ed 2005-07-12 devnull 
 52 a0d146ed 2005-07-12 devnull static void
 53 a0d146ed 2005-07-12 devnull clumpstats(Index *ix)
 54 a0d146ed 2005-07-12 devnull {
 55 a0d146ed 2005-07-12 devnull 	int ok;
 56 a0d146ed 2005-07-12 devnull 	ulong clumps, n;
 57 a0d146ed 2005-07-12 devnull 	int i, j, t;
 58 a0d146ed 2005-07-12 devnull 
 59 a0d146ed 2005-07-12 devnull 	ok = 0;
 60 a0d146ed 2005-07-12 devnull 	clumps = 0;
 61 a0d146ed 2005-07-12 devnull 	for(i = 0; i < ix->narenas; i++){
 62 a0d146ed 2005-07-12 devnull 		n = readarenainfo(ix->arenas[i]);
 63 a0d146ed 2005-07-12 devnull 		if(n == TWID32){
 64 a0d146ed 2005-07-12 devnull 			ok = -1;
 65 a0d146ed 2005-07-12 devnull 			break;
 66 a0d146ed 2005-07-12 devnull 		}
 67 a0d146ed 2005-07-12 devnull 		clumps += n;
 68 a0d146ed 2005-07-12 devnull 	}
 69 a0d146ed 2005-07-12 devnull 
 70 a0d146ed 2005-07-12 devnull 	if(ok < 0)
 71 a0d146ed 2005-07-12 devnull 		return;
 72 a0d146ed 2005-07-12 devnull 
 73 a0d146ed 2005-07-12 devnull 	print("clumps = %ld\n", clumps);
 74 a0d146ed 2005-07-12 devnull 	for(i=0; i<VtMaxLumpSize; i++) {
 75 a0d146ed 2005-07-12 devnull 		t = 0;
 76 a0d146ed 2005-07-12 devnull 		for(j=0; j<VtMaxType; j++)
 77 a0d146ed 2005-07-12 devnull 			t += count[i][j];
 78 a0d146ed 2005-07-12 devnull 		if(t == 0)
 79 a0d146ed 2005-07-12 devnull 			continue;
 80 a0d146ed 2005-07-12 devnull 		print("%d\t%d", i, t);
 81 a0d146ed 2005-07-12 devnull 		for(j=0; j<VtMaxType; j++)
 82 a0d146ed 2005-07-12 devnull 			print("\t%d", count[i][j]);
 83 a0d146ed 2005-07-12 devnull 		print("\n");
 84 a0d146ed 2005-07-12 devnull 	}
 85 a0d146ed 2005-07-12 devnull }
 86 a0d146ed 2005-07-12 devnull 
 87 a0d146ed 2005-07-12 devnull 
 88 a0d146ed 2005-07-12 devnull void
 89 a0d146ed 2005-07-12 devnull usage(void)
 90 a0d146ed 2005-07-12 devnull {
 91 a0d146ed 2005-07-12 devnull 	fprint(2, "usage: clumpstats [-B blockcachesize] config\n");
 92 a0d146ed 2005-07-12 devnull 	threadexitsall(0);
 93 a0d146ed 2005-07-12 devnull }
 94 a0d146ed 2005-07-12 devnull 
 95 a0d146ed 2005-07-12 devnull void
 96 a0d146ed 2005-07-12 devnull threadmain(int argc, char *argv[])
 97 a0d146ed 2005-07-12 devnull {
 98 a0d146ed 2005-07-12 devnull 	u32int bcmem;
 99 a0d146ed 2005-07-12 devnull 
100 a0d146ed 2005-07-12 devnull 	bcmem = 0;
101 a0d146ed 2005-07-12 devnull 
102 a0d146ed 2005-07-12 devnull 	ARGBEGIN{
103 a0d146ed 2005-07-12 devnull 	case 'B':
104 a0d146ed 2005-07-12 devnull 		bcmem = unittoull(ARGF());
105 a0d146ed 2005-07-12 devnull 		break;
106 a0d146ed 2005-07-12 devnull 	default:
107 a0d146ed 2005-07-12 devnull 		usage();
108 a0d146ed 2005-07-12 devnull 		break;
109 a0d146ed 2005-07-12 devnull 	}ARGEND
110 a0d146ed 2005-07-12 devnull 
111 a0d146ed 2005-07-12 devnull 	readonly = 1;
112 a0d146ed 2005-07-12 devnull 
113 a0d146ed 2005-07-12 devnull 	if(argc != 1)
114 a0d146ed 2005-07-12 devnull 		usage();
115 a0d146ed 2005-07-12 devnull 
116 a0d146ed 2005-07-12 devnull 	if(initventi(argv[0], &conf) < 0)
117 a0d146ed 2005-07-12 devnull 		sysfatal("can't init venti: %r");
118 a0d146ed 2005-07-12 devnull 
119 a0d146ed 2005-07-12 devnull 	if(bcmem < maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16))
120 a0d146ed 2005-07-12 devnull 		bcmem = maxblocksize * (mainindex->narenas + mainindex->nsects * 4 + 16);
121 a0d146ed 2005-07-12 devnull 	if(0) fprint(2, "initialize %d bytes of disk block cache\n", bcmem);
122 a0d146ed 2005-07-12 devnull 	initdcache(bcmem);
123 a0d146ed 2005-07-12 devnull 
124 a0d146ed 2005-07-12 devnull 	clumpstats(mainindex);
125 fa325e9b 2020-01-10 cross 
126 a0d146ed 2005-07-12 devnull 	threadexitsall(0);
127 a0d146ed 2005-07-12 devnull }