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rate-limiter: add rate limiter configuration/annotation on VM level

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Add configuration/annotation about network I/O throttling on VM level.
rx_rate_limiter_max_rate is dedicated to control network inbound
bandwidth per pod.
tx_rate_limiter_max_rate is dedicated to control network outbound
bandwidth per pod.

Fixes: #250

Signed-off-by: Penny Zheng <penny.zheng@arm.com>
This commit is contained in:
Penny Zheng
2020-06-09 06:57:50 +00:00
parent ec146a1b39
commit c2645f5d5a
11 changed files with 140 additions and 9 deletions
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13
src/runtime/pkg/katautils/config_test.go
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@@ -786,6 +786,9 @@ func TestNewQemuHypervisorConfig(t *testing.T) {
utils.VHostVSockDevicePath = orgVHostVSockDevicePath
}()
utils.VHostVSockDevicePath = "/dev/abc/xyz"
// 10Mbits/sec
rxRateLimiterMaxRate := uint64(10000000)
txRateLimiterMaxRate := uint64(10000000)
hypervisor := hypervisor{
Path: hypervisorPath,
@@ -797,6 +800,8 @@ func TestNewQemuHypervisorConfig(t *testing.T) {
HotplugVFIOOnRootBus: hotplugVFIOOnRootBus,
PCIeRootPort: pcieRootPort,
UseVSock: true,
RxRateLimiterMaxRate: rxRateLimiterMaxRate,
TxRateLimiterMaxRate: txRateLimiterMaxRate,
}
files := []string{hypervisorPath, kernelPath, imagePath}
@@ -857,6 +862,14 @@ func TestNewQemuHypervisorConfig(t *testing.T) {
if config.PCIeRootPort != pcieRootPort {
t.Errorf("Expected value for PCIeRootPort %v, got %v", pcieRootPort, config.PCIeRootPort)
}
if config.RxRateLimiterMaxRate != rxRateLimiterMaxRate {
t.Errorf("Expected value for rx rate limiter %v, got %v", rxRateLimiterMaxRate, config.RxRateLimiterMaxRate)
}
if config.TxRateLimiterMaxRate != txRateLimiterMaxRate {
t.Errorf("Expected value for tx rate limiter %v, got %v", txRateLimiterMaxRate, config.TxRateLimiterMaxRate)
}
}
func TestNewQemuHypervisorConfigImageAndInitrd(t *testing.T) {