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qemu: Implement auto convergence migration parameters 

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
This commit is contained in:
Jiri Denemark 2016-06-21 10:06:29 +02:00
parent abaa11006f
commit 445853e1ba
3 changed files with 99 additions and 23 deletions
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13
src/qemu/qemu_driver.c
View File

@ -11764,6 +11764,7 @@ qemuDomainMigratePerform(virDomainPtr dom,
int ret = -1;
const char *dconnuri = NULL;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
@ -11798,7 +11799,7 @@ qemuDomainMigratePerform(virDomainPtr dom,
*/
ret = qemuMigrationPerform(driver, dom->conn, vm, NULL,
NULL, dconnuri, uri, NULL, NULL, 0, NULL, 0,
compression, cookie, cookielen,
compression, &migParams, cookie, cookielen,
NULL, NULL, /* No output cookies in v2 */
flags, dname, resource, false);
@ -12187,6 +12188,7 @@ qemuDomainMigratePerform3(virDomainPtr dom,
virQEMUDriverPtr driver = dom->conn->privateData;
virDomainObjPtr vm;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
@ -12204,7 +12206,7 @@ qemuDomainMigratePerform3(virDomainPtr dom,
ret = qemuMigrationPerform(driver, dom->conn, vm, xmlin, NULL,
dconnuri, uri, NULL, NULL, 0, NULL, 0,
compression,
compression, &migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, dname, resource, true);
@ -12238,6 +12240,7 @@ qemuDomainMigratePerform3Params(virDomainPtr dom,
unsigned long long bandwidth = 0;
int nbdPort = 0;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParamsPtr migParams = NULL;
int ret = -1;
virCheckFlags(QEMU_MIGRATION_FLAGS, -1);
@ -12277,6 +12280,9 @@ qemuDomainMigratePerform3Params(virDomainPtr dom,
if (nmigrate_disks < 0)
goto cleanup;
if (!(migParams = qemuMigrationParams(params, nparams, flags)))
goto cleanup;
if (!(compression = qemuMigrationCompressionParse(params, nparams, flags)))
goto cleanup;
@ -12291,11 +12297,12 @@ qemuDomainMigratePerform3Params(virDomainPtr dom,
ret = qemuMigrationPerform(driver, dom->conn, vm, dom_xml, persist_xml,
dconnuri, uri, graphicsuri, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
compression,
compression, migParams,
cookiein, cookieinlen, cookieout, cookieoutlen,
flags, dname, bandwidth, true);
cleanup:
VIR_FREE(compression);
VIR_FREE(migParams);
VIR_FREE(migrate_disks);
return ret;
}

101
src/qemu/qemu_migration.c
View File

@ -3479,6 +3479,52 @@ qemuMigrationSetCompression(virQEMUDriverPtr driver,
}
qemuMonitorMigrationParamsPtr
qemuMigrationParams(virTypedParameterPtr params,
int nparams,
unsigned long flags)
{
qemuMonitorMigrationParamsPtr migParams;
if (VIR_ALLOC(migParams) < 0)
return NULL;
if (!params)
return migParams;
#define GET(PARAM, VAR) \
do { \
int rc; \
if ((rc = virTypedParamsGetInt(params, nparams, \
VIR_MIGRATE_PARAM_ ## PARAM, \
&migParams->VAR)) < 0) \
goto error; \
\
if (rc == 1) \
migParams->VAR ## _set = true; \
} while (0)
GET(AUTO_CONVERGE_INITIAL, cpuThrottleInitial);
GET(AUTO_CONVERGE_INCREMENT, cpuThrottleIncrement);
#undef GET
if ((migParams->cpuThrottleInitial_set ||
migParams->cpuThrottleIncrement_set) &&
!(flags & VIR_MIGRATE_AUTO_CONVERGE)) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("Turn auto convergence on to tune it"));
goto error;
}
return migParams;
error:
VIR_FREE(migParams);
return NULL;
}
static int
qemuMigrationSetParams(virQEMUDriverPtr driver,
virDomainObjPtr vm,
@ -4564,7 +4610,8 @@ qemuMigrationRun(virQEMUDriverPtr driver,
const char *graphicsuri,
size_t nmigrate_disks,
const char **migrate_disks,
qemuMigrationCompressionPtr compression)
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams)
{
int ret = -1;
unsigned int migrate_flags = QEMU_MONITOR_MIGRATE_BACKGROUND;
@ -4582,7 +4629,6 @@ qemuMigrationRun(virQEMUDriverPtr driver,
virDomainDefPtr persistDef = NULL;
char *timestamp;
int rc;
qemuMonitorMigrationParams migParams = { 0 };
VIR_DEBUG("driver=%p, vm=%p, cookiein=%s, cookieinlen=%d, "
"cookieout=%p, cookieoutlen=%p, flags=%lx, resource=%lu, "
@ -4663,7 +4709,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
}
if (qemuMigrationSetCompression(driver, vm, QEMU_ASYNC_JOB_MIGRATION_OUT,
compression, &migParams) < 0)
compression, migParams) < 0)
goto cleanup;
if (qemuMigrationSetOption(driver, vm,
@ -4684,7 +4730,7 @@ qemuMigrationRun(virQEMUDriverPtr driver,
goto cleanup;
if (qemuMigrationSetParams(driver, vm, QEMU_ASYNC_JOB_MIGRATION_OUT,
&migParams) < 0)
migParams) < 0)
goto cleanup;
if (qemuDomainObjEnterMonitorAsync(driver, vm,
@ -4918,7 +4964,8 @@ static int doNativeMigrate(virQEMUDriverPtr driver,
const char *graphicsuri,
size_t nmigrate_disks,
const char **migrate_disks,
qemuMigrationCompressionPtr compression)
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams)
{
qemuDomainObjPrivatePtr priv = vm->privateData;
virURIPtr uribits = NULL;
@ -4969,7 +5016,7 @@ static int doNativeMigrate(virQEMUDriverPtr driver,
ret = qemuMigrationRun(driver, vm, persist_xml, cookiein, cookieinlen, cookieout,
cookieoutlen, flags, resource, &spec, dconn,
graphicsuri, nmigrate_disks, migrate_disks,
compression);
compression, migParams);
if (spec.destType == MIGRATION_DEST_FD)
VIR_FORCE_CLOSE(spec.dest.fd.qemu);
@ -4995,7 +5042,8 @@ static int doTunnelMigrate(virQEMUDriverPtr driver,
const char *graphicsuri,
size_t nmigrate_disks,
const char **migrate_disks,
qemuMigrationCompressionPtr compression)
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams)
{
virNetSocketPtr sock = NULL;
int ret = -1;
@ -5033,7 +5081,7 @@ static int doTunnelMigrate(virQEMUDriverPtr driver,
ret = qemuMigrationRun(driver, vm, persist_xml, cookiein, cookieinlen,
cookieout, cookieoutlen, flags, resource, &spec,
dconn, graphicsuri, nmigrate_disks, migrate_disks,
compression);
compression, migParams);
cleanup:
if (spec.destType == MIGRATION_DEST_FD) {
@ -5072,6 +5120,7 @@ static int doPeer2PeerMigrate2(virQEMUDriverPtr driver,
virStreamPtr st = NULL;
unsigned long destflags;
qemuMigrationCompressionPtr compression = NULL;
qemuMonitorMigrationParams migParams = { 0 };
VIR_DEBUG("driver=%p, sconn=%p, dconn=%p, vm=%p, dconnuri=%s, "
"flags=%lx, dname=%s, resource=%lu",
@ -5148,12 +5197,13 @@ static int doPeer2PeerMigrate2(virQEMUDriverPtr driver,
ret = doTunnelMigrate(driver, vm, st, NULL,
NULL, 0, NULL, NULL,
flags, resource, dconn,
NULL, 0, NULL, compression);
NULL, 0, NULL, compression, &migParams);
else
ret = doNativeMigrate(driver, vm, NULL, uri_out,
cookie, cookielen,
NULL, NULL, /* No out cookie with v2 migration */
flags, resource, dconn, NULL, 0, NULL, compression);
flags, resource, dconn, NULL, 0, NULL,
compression, &migParams);
/* Perform failed. Make sure Finish doesn't overwrite the error */
if (ret < 0)
@ -5221,6 +5271,7 @@ doPeer2PeerMigrate3(virQEMUDriverPtr driver,
const char **migrate_disks,
int nbdPort,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
unsigned long long bandwidth,
bool useParams,
unsigned long flags)
@ -5392,13 +5443,15 @@ doPeer2PeerMigrate3(virQEMUDriverPtr driver,
cookiein, cookieinlen,
&cookieout, &cookieoutlen,
flags, bandwidth, dconn, graphicsuri,
nmigrate_disks, migrate_disks, compression);
nmigrate_disks, migrate_disks, compression,
migParams);
} else {
ret = doNativeMigrate(driver, vm, persist_xml, uri,
cookiein, cookieinlen,
&cookieout, &cookieoutlen,
flags, bandwidth, dconn, graphicsuri,
nmigrate_disks, migrate_disks, compression);
nmigrate_disks, migrate_disks, compression,
migParams);
}
/* Perform failed. Make sure Finish doesn't overwrite the error */
@ -5576,6 +5629,7 @@ static int doPeer2PeerMigrate(virQEMUDriverPtr driver,
const char **migrate_disks,
int nbdPort,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
unsigned long flags,
const char *dname,
unsigned long resource,
@ -5699,8 +5753,8 @@ static int doPeer2PeerMigrate(virQEMUDriverPtr driver,
ret = doPeer2PeerMigrate3(driver, sconn, dconn, dconnuri, vm, xmlin,
persist_xml, dname, uri, graphicsuri,
listenAddress, nmigrate_disks, migrate_disks,
nbdPort, compression, resource, useParams,
flags);
nbdPort, compression, migParams, resource,
useParams, flags);
} else {
ret = doPeer2PeerMigrate2(driver, sconn, dconn, vm,
dconnuri, flags, dname, resource);
@ -5740,6 +5794,7 @@ qemuMigrationPerformJob(virQEMUDriverPtr driver,
const char **migrate_disks,
int nbdPort,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,
@ -5776,13 +5831,14 @@ qemuMigrationPerformJob(virQEMUDriverPtr driver,
ret = doPeer2PeerMigrate(driver, conn, vm, xmlin, persist_xml,
dconnuri, uri, graphicsuri, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
compression, flags, dname, resource, &v3proto);
compression, migParams, flags, dname, resource,
&v3proto);
} else {
qemuMigrationJobSetPhase(driver, vm, QEMU_MIGRATION_PHASE_PERFORM2);
ret = doNativeMigrate(driver, vm, persist_xml, uri, cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, resource, NULL, NULL, 0, NULL,
compression);
compression, migParams);
}
if (ret < 0)
goto endjob;
@ -5845,6 +5901,7 @@ qemuMigrationPerformPhase(virQEMUDriverPtr driver,
size_t nmigrate_disks,
const char **migrate_disks,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,
@ -5870,7 +5927,7 @@ qemuMigrationPerformPhase(virQEMUDriverPtr driver,
ret = doNativeMigrate(driver, vm, persist_xml, uri, cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, resource, NULL, graphicsuri,
nmigrate_disks, migrate_disks, compression);
nmigrate_disks, migrate_disks, compression, migParams);
if (ret < 0) {
if (qemuMigrationRestoreDomainState(conn, vm)) {
@ -5915,6 +5972,7 @@ qemuMigrationPerform(virQEMUDriverPtr driver,
const char **migrate_disks,
int nbdPort,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,
@ -5945,7 +6003,8 @@ qemuMigrationPerform(virQEMUDriverPtr driver,
return qemuMigrationPerformJob(driver, conn, vm, xmlin, persist_xml, dconnuri, uri,
graphicsuri, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
compression, cookiein, cookieinlen,
compression, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, dname, resource, v3proto);
} else {
@ -5959,14 +6018,16 @@ qemuMigrationPerform(virQEMUDriverPtr driver,
return qemuMigrationPerformPhase(driver, conn, vm, persist_xml, uri,
graphicsuri,
nmigrate_disks, migrate_disks,
compression, cookiein, cookieinlen,
compression, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen,
flags, resource);
} else {
return qemuMigrationPerformJob(driver, conn, vm, xmlin, persist_xml, NULL,
uri, graphicsuri, listenAddress,
nmigrate_disks, migrate_disks, nbdPort,
compression, cookiein, cookieinlen,
compression, migParams,
cookiein, cookieinlen,
cookieout, cookieoutlen, flags,
dname, resource, v3proto);
}

8
src/qemu/qemu_migration.h
View File

@ -65,6 +65,8 @@ typedef qemuMigrationCompression *qemuMigrationCompressionPtr;
VIR_MIGRATE_PARAM_COMPRESSION_MT_DTHREADS, VIR_TYPED_PARAM_INT, \
VIR_MIGRATE_PARAM_COMPRESSION_XBZRLE_CACHE, VIR_TYPED_PARAM_ULLONG, \
VIR_MIGRATE_PARAM_PERSIST_XML, VIR_TYPED_PARAM_STRING, \
VIR_MIGRATE_PARAM_AUTO_CONVERGE_INITIAL, VIR_TYPED_PARAM_INT, \
VIR_MIGRATE_PARAM_AUTO_CONVERGE_INCREMENT, VIR_TYPED_PARAM_INT, \
NULL
@ -118,6 +120,11 @@ int qemuMigrationCompressionDump(qemuMigrationCompressionPtr compression,
int *maxparams,
unsigned long *flags);
qemuMonitorMigrationParamsPtr
qemuMigrationParams(virTypedParameterPtr params,
int nparams,
unsigned long flags);
int qemuMigrationJobStart(virQEMUDriverPtr driver,
virDomainObjPtr vm,
qemuDomainAsyncJob job)
@ -197,6 +204,7 @@ int qemuMigrationPerform(virQEMUDriverPtr driver,
const char **migrate_disks,
int nbdPort,
qemuMigrationCompressionPtr compression,
qemuMonitorMigrationParamsPtr migParams,
const char *cookiein,
int cookieinlen,
char **cookieout,