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output the numbers of runs and fragments in ntfsinfo 

It is difficult to identify whether a file from a user complaining about
bad throughput is over-fragmented, so get the information from ntfsinfo.
edge.strict_endians
Jean-Pierre André 2012-01-23 17:20:20 +01:00
parent 3c6e88cb0f
commit 0aa68c128d
1 changed files with 22 additions and 4 deletions
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26
ntfsprogs/ntfsinfo.c
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@ -94,6 +94,11 @@ static struct options {
int mft; /* Dump information about the volume as well */
} opts;
struct RUNCOUNT {
unsigned long runs;
unsigned long fragments;
} ;
/**
* version - Print version information about the program
*
@ -1247,7 +1252,7 @@ static const char * ntfs_dump_lcn(LCN lcn)
}
static void ntfs_dump_attribute_header(ntfs_attr_search_ctx *ctx,
ntfs_volume *vol)
ntfs_volume *vol, struct RUNCOUNT *runcount)
{
ATTR_RECORD *a = ctx->attr;
@ -1344,17 +1349,25 @@ static void ntfs_dump_attribute_header(ntfs_attr_search_ctx *ctx,
rl = ntfs_mapping_pairs_decompress(vol, a, NULL);
if (rl) {
runlist *rlc = rl;
LCN next_lcn;
next_lcn = LCN_HOLE;
// TODO: Switch this to properly aligned hex...
printf("\tRunlist:\tVCN\t\tLCN\t\tLength\n");
runcount->fragments++;
while (rlc->length) {
if (rlc->lcn >= 0)
runcount->runs++;
if (rlc->lcn >= 0) {
printf("\t\t\t0x%llx\t\t0x%llx\t\t"
"0x%llx\n",
(long long)rlc->vcn,
(long long)rlc->lcn,
(long long)rlc->length);
else
if ((next_lcn >= 0)
&& (rlc->lcn != next_lcn))
runcount->fragments++;
next_lcn = rlc->lcn + rlc->length;
} else
printf("\t\t\t0x%llx\t\t%s\t"
"0x%llx\n",
(long long)rlc->vcn,
@ -2187,8 +2200,11 @@ static void ntfs_dump_inode_general_info(ntfs_inode *inode)
*/
static void ntfs_dump_file_attributes(ntfs_inode *inode)
{
struct RUNCOUNT runcount;
ntfs_attr_search_ctx *ctx = NULL;
runcount.runs = 0;
runcount.fragments = 0;
/* then start enumerating attributes
see ntfs_attr_lookup documentation for detailed explanation */
ctx = ntfs_attr_get_search_ctx(inode, NULL);
@ -2202,7 +2218,7 @@ static void ntfs_dump_file_attributes(ntfs_inode *inode)
continue;
}
ntfs_dump_attribute_header(ctx, inode->vol);
ntfs_dump_attribute_header(ctx, inode->vol, &runcount);
switch (ctx->attr->type) {
case AT_STANDARD_INFORMATION:
@ -2265,6 +2281,8 @@ static void ntfs_dump_file_attributes(ntfs_inode *inode)
"enumerating attributes");
} else {
printf("End of inode reached\n");
printf("Total runs: %lu (fragments: %lu)\n",
runcount.runs, runcount.fragments);
}
/* close all data-structures we used */