"""
+Copyright (c) 2015 SONATA-NFV and Paderborn University
+ALL RIGHTS RESERVED.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+
+Neither the name of the SONATA-NFV [, ANY ADDITIONAL AFFILIATION]
+nor the names of its contributors may be used to endorse or promote
+products derived from this software without specific prior written
+permission.
+
+This work has been performed in the framework of the SONATA project,
+funded by the European Commission under Grant number 671517 through
+the Horizon 2020 and 5G-PPP programmes. The authors would like to
+acknowledge the contributions of their colleagues of the SONATA
+partner consortium (www.sonata-nfv.eu).
+"""
+"""
Playground for resource models created by University of Paderborn.
"""
import time
import json
import logging
-from emuvim.dcemulator.resourcemodel import BaseResourceModel
+from emuvim.dcemulator.resourcemodel import BaseResourceModel, NotEnoughResourcesAvailable
LOG = logging.getLogger("rm.upb.simple")
LOG.setLevel(logging.DEBUG)
self.deactivate_mem_limit = deactivate_mem_limit
self.single_cu = 0
self.single_mu = 0
+ self.cpu_op_factor = 1.0 # over provisioning factor
+ self.mem_op_factor = 1.0
self.raise_no_cpu_resources_left = True
self.raise_no_mem_resources_left = True
super(UpbSimpleCloudDcRM, self).__init__()
fl_cu = self._get_flavor(d).get("compute")
# check for over provisioning
if self.dc_alloc_cu + fl_cu > self.dc_max_cu and self.raise_no_cpu_resources_left:
- raise Exception("Not enough compute resources left.")
+ raise NotEnoughResourcesAvailable("Not enough compute resources left.")
self.dc_alloc_cu += fl_cu
def _allocate_mem(self, d):
fl_mu = self._get_flavor(d).get("memory")
# check for over provisioning
if self.dc_alloc_mu + fl_mu > self.dc_max_mu and self.raise_no_mem_resources_left:
- raise Exception("Not enough memory resources left.")
+ raise NotEnoughResourcesAvailable("Not enough memory resources left.")
self.dc_alloc_mu += fl_mu
def free(self, d):
cpu_period, cpu_quota = self._calculate_cpu_cfs_values(cpu_time_percentage)
# apply limits to container if changed
if d.cpu_period != cpu_period or d.cpu_quota != cpu_quota:
- LOG.debug("Setting CPU limit for %r: cpu_quota = cpu_period * limit = %f * %f = %f" % (
- d.name, cpu_period, cpu_time_percentage, cpu_quota))
+ LOG.debug("Setting CPU limit for %r: cpu_quota = cpu_period * limit = %f * %f = %f (op_factor=%f)" % (
+ d.name, cpu_period, cpu_time_percentage, cpu_quota, self.cpu_op_factor))
d.updateCpuLimit(cpu_period=int(cpu_period), cpu_quota=int(cpu_quota))
def _compute_single_cu(self):
mem_limit = self._calculate_mem_limit_value(mem_limit)
# apply to container if changed
if d.mem_limit != mem_limit:
- LOG.debug("Setting MEM limit for %r: mem_limit = %f MB" % (d.name, mem_limit/1024/1024))
+ LOG.debug("Setting MEM limit for %r: mem_limit = %f MB (op_factor=%f)" %
+ (d.name, mem_limit/1024/1024, self.mem_op_factor))
d.updateMemoryLimit(mem_limit=mem_limit)
def _calculate_mem_limit_value(self, mem_limit):
r["dc_alloc_mu"] = self.dc_alloc_mu
r["single_cu_percentage"] = self.single_cu
r["single_mu_percentage"] = self.single_mu
+ r["cpu_op_factor"] = self.cpu_op_factor
+ r["mem_op_factor"] = self.mem_op_factor
r["allocation_state"] = allocation_state
return r
Allows over provisioning. Might result in reducing resources of single
containers whenever a data-center is over provisioned.
"""
+ # TODO add parts for memory
def __init__(self, *args, **kvargs):
super(UpbOverprovisioningCloudDcRM, self).__init__(*args, **kvargs)
self.raise_no_cpu_resources_left = False
# get cpu time fraction for entire emulation
e_cpu = self.registrar.e_cpu
# calculate over provisioning scale factor
- self.op_factor = float(self.dc_max_cu) / (max(self.dc_max_cu, self.dc_alloc_cu))
- LOG.info("========== op_factor=%r ===========" % self.op_factor)
+ self.cpu_op_factor = float(self.dc_max_cu) / (max(self.dc_max_cu, self.dc_alloc_cu))
# calculate
- return float(e_cpu) / sum([rm.dc_max_cu for rm in list(self.registrar.resource_models)]) * self.op_factor
+ return float(e_cpu) / sum([rm.dc_max_cu for rm in list(self.registrar.resource_models)]) * self.cpu_op_factor
+
+
+class UpbDummyRM(UpbSimpleCloudDcRM):
+ """
+ No limits. But log allocations.
+ """
+ def __init__(self, *args, **kvargs):
+ super(UpbDummyRM, self).__init__(*args, **kvargs)
+ self.raise_no_cpu_resources_left = False
+
+ def _apply_limits(self):
+ # do nothing here
+ pass
- # TODO log op_factor