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With the typical memory size of the system in tenth of gigabytes

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counting memory being dumped in 16MB increments is somewhat silly.
Especially if the dump fails and everything you've got for debugging
is screen filled with numbers in 16 decrements... Replace that with
percentage-based progress with max 10 updates all fitting into one
line.

Collapse other very "useful" piece of crash information (total ram) into
the same line to save some more space.

MFC after:	1 week
This commit is contained in:
Maxim Sobolev 2011-04-26 16:14:55 +00:00
parent 541cb7a358
commit f30bc1f3b5
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=221069
1 changed files with 38 additions and 5 deletions
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43
sys/amd64/amd64/minidump_machdep.c
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@ -62,7 +62,7 @@ static off_t dumplo;
/* Handle chunked writes. */
static size_t fragsz;
static void *dump_va;
static size_t counter, progress;
static size_t counter, progress, dumpsize;
CTASSERT(sizeof(*vm_page_dump) == 8);
@ -94,6 +94,40 @@ blk_flush(struct dumperinfo *di)
return (error);
}
static struct {
int min_per;
int max_per;
int visited;
} progress_track[10] = {
{ 0, 10, 0},
{ 10, 20, 0},
{ 20, 30, 0},
{ 30, 40, 0},
{ 40, 50, 0},
{ 50, 60, 0},
{ 60, 70, 0},
{ 70, 80, 0},
{ 80, 90, 0},
{ 90, 100, 0}
};
static void
report_progress(size_t progress, size_t dumpsize)
{
int sofar, i;
sofar = 100 - ((progress * 100) / dumpsize);
for (i = 0; i < 10; i++) {
if (sofar < progress_track[i].min_per || sofar > progress_track[i].max_per)
continue;
if (progress_track[i].visited)
return;
progress_track[i].visited = 1;
printf("..%d%%", sofar);
return;
}
}
static int
blk_write(struct dumperinfo *di, char *ptr, vm_paddr_t pa, size_t sz)
{
@ -130,7 +164,7 @@ blk_write(struct dumperinfo *di, char *ptr, vm_paddr_t pa, size_t sz)
counter += len;
progress -= len;
if (counter >> 24) {
printf(" %ld", PG2MB(progress >> PAGE_SHIFT));
report_progress(progress, dumpsize);
counter &= (1<<24) - 1;
}
if (ptr) {
@ -170,7 +204,6 @@ static pd_entry_t fakepd[NPDEPG];
void
minidumpsys(struct dumperinfo *di)
{
uint64_t dumpsize;
uint32_t pmapsize;
vm_offset_t va;
int error;
@ -290,8 +323,8 @@ minidumpsys(struct dumperinfo *di)
mkdumpheader(&kdh, KERNELDUMPMAGIC, KERNELDUMP_AMD64_VERSION, dumpsize, di->blocksize);
printf("Physical memory: %ju MB\n", ptoa((uintmax_t)physmem) / 1048576);
printf("Dumping %llu MB:", (long long)dumpsize >> 20);
printf("Dumping %llu out of %ju MB:", (long long)dumpsize >> 20,
ptoa((uintmax_t)physmem) / 1048576);
/* Dump leader */
error = dump_write(di, &kdh, 0, dumplo, sizeof(kdh));