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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-changelog] Added new simple EDF scheduler
ChangeSet 1.1159.221.1, 2005/01/17 13:38:54+00:00, sd386@xxxxxxxxxxxxxxxxx
Added new simple EDF scheduler
tools/libxc/Makefile | 1
tools/libxc/xc.h | 8
tools/libxc/xc_sedf.c | 45 ++
tools/python/xen/lowlevel/xc/xc.c | 64 +++
tools/python/xen/xend/XendClient.py | 6
tools/python/xen/xend/XendDomain.py | 18 +
tools/python/xen/xend/server/SrvDomain.py | 8
tools/python/xen/xm/main.py | 17 +
xen/common/sched_sedf.c | 505 ++++++++++++++++++++++++++++++
xen/common/schedule.c | 4
xen/include/public/sched_ctl.h | 10
11 files changed, 685 insertions(+), 1 deletion(-)
diff -Nru a/tools/libxc/Makefile b/tools/libxc/Makefile
--- a/tools/libxc/Makefile 2005-05-09 14:03:41 -04:00
+++ b/tools/libxc/Makefile 2005-05-09 14:03:41 -04:00
@@ -12,6 +12,7 @@
INCLUDES += -I $(XEN_LIBXUTIL)
SRCS :=
+SRCS += xc_sedf.c
SRCS += xc_atropos.c
SRCS += xc_bvtsched.c
SRCS += xc_domain.c
diff -Nru a/tools/libxc/xc.h b/tools/libxc/xc.h
--- a/tools/libxc/xc.h 2005-05-09 14:03:41 -04:00
+++ b/tools/libxc/xc.h 2005-05-09 14:03:41 -04:00
@@ -132,6 +132,14 @@
int xc_rrobin_global_get(int xc_handle, u64 *slice);
+int xc_sedf_domain_set(int xc_handle,
+ u32 domid,
+ u64 period, u64 slice);
+
+int xc_sedf_domain_get(int xc_handle,
+ u32 domid,
+ u64* period, u64 *slice);
+
typedef evtchn_status_t xc_evtchn_status_t;
int xc_evtchn_alloc_unbound(int xc_handle,
u32 dom,
diff -Nru a/tools/libxc/xc_sedf.c b/tools/libxc/xc_sedf.c
--- /dev/null Wed Dec 31 16:00:00 196900
+++ b/tools/libxc/xc_sedf.c 2005-05-09 14:03:41 -04:00
@@ -0,0 +1,45 @@
+/******************************************************************************
+ * xc_sedf.c
+ *
+ * API for manipulating parameters of the Simple EDF scheduler.
+ *
+ * changes by Stephan Diestelhorst
+ * based on code
+ * by Mark Williamson, Copyright (c) 2004 Intel Research Cambridge.
+ */
+
+#include "xc_private.h"
+
+int xc_sedf_domain_set(int xc_handle,
+ u32 domid, u64 period, u64 slice)
+{
+ dom0_op_t op;
+ struct sedf_adjdom *p = &op.u.adjustdom.u.sedf;
+
+ op.cmd = DOM0_ADJUSTDOM;
+ op.u.adjustdom.domain = (domid_t)domid;
+ op.u.adjustdom.sched_id = SCHED_SEDF;
+ op.u.adjustdom.direction = SCHED_INFO_PUT;
+
+ p->period = period;
+ p->slice = slice;
+ return do_dom0_op(xc_handle, &op);
+}
+
+int xc_sedf_domain_get(int xc_handle, u32 domid, u64 *period, u64 *slice)
+{
+ dom0_op_t op;
+ int ret;
+ struct sedf_adjdom *p = &op.u.adjustdom.u.sedf;
+
+ op.cmd = DOM0_ADJUSTDOM;
+ op.u.adjustdom.domain = (domid_t)domid;
+ op.u.adjustdom.sched_id = SCHED_SEDF;
+ op.u.adjustdom.direction = SCHED_INFO_GET;
+
+ ret = do_dom0_op(xc_handle, &op);
+
+ *period = p->period;
+ *slice = p->slice;
+ return ret;
+}
diff -Nru a/tools/python/xen/lowlevel/xc/xc.c
b/tools/python/xen/lowlevel/xc/xc.c
--- a/tools/python/xen/lowlevel/xc/xc.c 2005-05-09 14:03:41 -04:00
+++ b/tools/python/xen/lowlevel/xc/xc.c 2005-05-09 14:03:41 -04:00
@@ -758,6 +758,50 @@
return zero;
}
+static PyObject *pyxc_sedf_domain_set(PyObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ XcObject *xc = (XcObject *)self;
+ u32 domid;
+ u64 period, slice;
+
+ static char *kwd_list[] = { "dom", "period", "slice", NULL };
+
+ if( !PyArg_ParseTupleAndKeywords(args, kwds, "iLL", kwd_list, &domid,
+ &period, &slice) )
+ return NULL;
+
+ if ( xc_sedf_domain_set(xc->xc_handle, domid, period, slice) != 0 )
+ return PyErr_SetFromErrno(xc_error);
+
+ Py_INCREF(zero);
+ return zero;
+}
+
+static PyObject *pyxc_sedf_domain_get(PyObject *self,
+ PyObject *args,
+ PyObject *kwds)
+{
+ XcObject *xc = (XcObject *)self;
+ u32 domid;
+ u64 period, slice;
+
+ static char *kwd_list[] = { "dom", NULL };
+
+ if( !PyArg_ParseTupleAndKeywords(args, kwds, "i", kwd_list, &domid) )
+ return NULL;
+
+ if ( xc_sedf_domain_get( xc->xc_handle, domid, &period,
+ &slice) )
+ return PyErr_SetFromErrno(xc_error);
+
+ return Py_BuildValue("{s:i,s:L,s:L}",
+ "domain", domid,
+ "period", period,
+ "slice", slice);
+}
+
static PyObject *pyxc_shadow_control(PyObject *self,
PyObject *args,
PyObject *kwds)
@@ -984,6 +1028,26 @@
"Get Round Robin scheduler settings\n"
"Returns [dict]:\n"
" slice [long]: Scheduler time slice.\n" },
+
+ { "sedf_domain_set",
+ (PyCFunction)pyxc_sedf_domain_set,
+ METH_KEYWORDS, "\n"
+ "Set the scheduling parameters for a domain when running with Atropos.\n"
+ " dom [int]: domain to set\n"
+ " period [long]: domain's scheduling period\n"
+ " slice [long]: domain's slice per period\n"
+ "Returns: [int] 0 on success; -1 on error.\n" },
+
+ { "sedf_domain_get",
+ (PyCFunction)pyxc_sedf_domain_get,
+ METH_KEYWORDS, "\n"
+ "Get the current scheduling parameters for a domain when running with\n"
+ "the Atropos scheduler."
+ " dom [int]: domain to query\n"
+ "Returns: [dict]\n"
+ " domain [int]: domain ID\n"
+ " period [long]: scheduler period\n"
+ " slice [long]: CPU reservation per period\n"},
{ "evtchn_alloc_unbound",
(PyCFunction)pyxc_evtchn_alloc_unbound,
diff -Nru a/tools/python/xen/xend/XendClient.py
b/tools/python/xen/xend/XendClient.py
--- a/tools/python/xen/xend/XendClient.py 2005-05-09 14:03:41 -04:00
+++ b/tools/python/xen/xend/XendClient.py 2005-05-09 14:03:41 -04:00
@@ -272,6 +272,12 @@
'latency' : latency,
'xtratime': xtratime })
+ def xend_domain_cpu_sedf_set(self, id, period, slice):
+ return self.xendPost(self.domainurl(id),
+ {'op' : 'cpu_sedf_set',
+ 'period' : period,
+ 'slice' : slice })
+
def xend_domain_maxmem_set(self, id, memory):
return self.xendPost(self.domainurl(id),
{ 'op' : 'maxmem_set',
diff -Nru a/tools/python/xen/xend/XendDomain.py
b/tools/python/xen/xend/XendDomain.py
--- a/tools/python/xen/xend/XendDomain.py 2005-05-09 14:03:41 -04:00
+++ b/tools/python/xen/xend/XendDomain.py 2005-05-09 14:03:41 -04:00
@@ -659,6 +659,24 @@
return xc.atropos_domain_get(dominfo.dom)
except Exception, ex:
raise XendError(str(ex))
+
+ def domain_cpu_sedf_set(self, id, period, slice):
+ """Set Atropos scheduler parameters for a domain.
+ """
+ dominfo = self.domain_lookup(id)
+ try:
+ return xc.sedf_domain_set(dominfo.dom, period, slice)
+ except Exception, ex:
+ raise XendError(str(ex))
+
+ def domain_cpu_sedf_get(self, id):
+ """Get Atropos scheduler parameters for a domain.
+ """
+ dominfo = self.domain_lookup(id)
+ try:
+ return xc.sedf_domain_get(dominfo.dom)
+ except Exception, ex:
+ raise XendError(str(ex))
def domain_device_create(self, id, devconfig):
"""Create a new device for a domain.
diff -Nru a/tools/python/xen/xend/server/SrvDomain.py
b/tools/python/xen/xend/server/SrvDomain.py
--- a/tools/python/xen/xend/server/SrvDomain.py 2005-05-09 14:03:41 -04:00
+++ b/tools/python/xen/xend/server/SrvDomain.py 2005-05-09 14:03:41 -04:00
@@ -132,6 +132,14 @@
['xtratime', 'int']])
val = fn(req.args, {'dom': self.dom.id})
return val
+
+ def op_cpu_sedf_set(self, op, req):
+ fn = FormFn(self.xd.domain_cpu_sedf_set,
+ [['dom', 'str'],
+ ['period', 'int'],
+ ['slice', 'int']])
+ val = fn(req.args, {'dom': self.dom.id})
+ return val
def op_maxmem_set(self, op, req):
fn = FormFn(self.xd.domain_maxmem_set,
diff -Nru a/tools/python/xen/xm/main.py b/tools/python/xen/xm/main.py
--- a/tools/python/xen/xm/main.py 2005-05-09 14:03:41 -04:00
+++ b/tools/python/xen/xm/main.py 2005-05-09 14:03:41 -04:00
@@ -587,6 +587,23 @@
xm.prog(ProgRrobin)
+class ProgSedf(Prog):
+ group = 'scheduler'
+ name= "sedf"
+ info = """Set simple EDF parameters."""
+
+ def help(self, args):
+ print args[0], "DOM PERIOD SLICE"
+ print "\nSet simple EDF parameters."
+
+ def main(self, args):
+ if len(args) != 4: self.err("%s: Invalid argument(s)" % args[0])
+ dom = args[1]
+ v = map(int, args[2:4])
+ server.xend_domain_cpu_sedf_set(dom, *v)
+
+xm.prog(ProgSedf)
+
class ProgInfo(Prog):
group = 'host'
name = "info"
diff -Nru a/xen/common/sched_sedf.c b/xen/common/sched_sedf.c
--- /dev/null Wed Dec 31 16:00:00 196900
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