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Adjust $LogFile size for 3.1 volumes which got much bigger (the small 

$LogFile became a performance bootleneck for the increasingly faster disks)
edge.strict_endians
szaka 2006-01-08 14:54:55 +00:00
parent 1df657f193
commit dc22f3e142
1 changed files with 24 additions and 5 deletions
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29
ntfsprogs/mkntfs.c
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@ -3921,11 +3921,30 @@ static BOOL mkntfs_initialize_rl_logfile(void)
g_logfile_size = 512LL * 1024; /* -> 512kiB */
else if (volume_size <= 200LL * 1024 * 1024) /* < 200MiB */
g_logfile_size = 2048LL * 1024; /* -> 2MiB */
else if (volume_size >= 400LL << 20) /* > 400MiB */
g_logfile_size = 4 << 20; /* -> 4MiB */
else
g_logfile_size = (volume_size / 100) &
~(g_vol->cluster_size - 1);
else if (g_vol->major_ver < 3) {
if (volume_size >= 400LL << 20) /* > 400MiB */
g_logfile_size = 4 << 20; /* -> 4MiB */
else
g_logfile_size = (volume_size / 100) &
~(g_vol->cluster_size - 1);
} else {
/*
* FIXME: The $LogFile size is 64 MiB upwards from 12GiB but
* the "200" divider below apparently approximates "100" or
* some other walue as the volume size decreases. For example:
* Volume size LogFile size Ratio
* 8799808 46048 191.100
* 8603248 45072 190.877
* 7341704 38768 189.375
* 6144828 32784 187.433
* 4192932 23024 182.111
*/
if (volume_size >= 12LL << 30) /* > 12GiB */
g_logfile_size = 64 << 20; /* -> 64MiB */
else
g_logfile_size = (volume_size / 200) &
~(g_vol->cluster_size - 1);
}
j = g_logfile_size / g_vol->cluster_size;
while (g_rl_logfile[0].lcn + j >= g_vol->nr_clusters) {
/*