ShuriZma
/
xemu
mirror of https://github.com/xemu-project/xemu.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

migration: add XFER_LIMIT_RATIO 

The "magic" divisions by 10 are there because of the value of BUFFER_DELAY.
Introduce a constant to explain them better.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This commit is contained in:
Juan Quintela 2012-12-19 10:40:48 +01:00
parent 0d82d0e8b9
commit 5b4e1eb769
1 changed files with 6 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
migration.c
View File

@ -44,6 +44,11 @@ enum {
#define MAX_THROTTLE (32 << 20) /* Migration speed throttling */
/* Amount of time to allocate to each "chunk" of bandwidth-throttled
* data. */
#define BUFFER_DELAY 100
#define XFER_LIMIT_RATIO (1000 / BUFFER_DELAY)
/* Migration XBZRLE default cache size */
#define DEFAULT_MIGRATE_CACHE_SIZE (64 * 1024 * 1024)
@ -743,9 +748,6 @@ static int64_t buffered_get_rate_limit(void *opaque)
return s->xfer_limit;
}
/* 100ms xfer_limit is the limit that we should write each 100ms */
#define BUFFER_DELAY 100
static void *buffered_file_thread(void *opaque)
{
QEMUFileBuffered *s = opaque;
@ -808,7 +810,7 @@ void qemu_fopen_ops_buffered(MigrationState *migration_state)
s = g_malloc0(sizeof(*s));
s->migration_state = migration_state;
s->xfer_limit = migration_state->bandwidth_limit / 10;
s->xfer_limit = s->migration_state->bandwidth_limit / XFER_LIMIT_RATIO;
s->migration_state->complete = false;
s->file = qemu_fopen_ops(s, &buffered_file_ops);