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6b15ca19cd
Fixes: #7081 Review all reservations and limits set, test under stress load (using both memory and CPU). The goal: system components (Talos itself) and runtime (kubelet, CRI) should survive under extreme resource starvation (workloads consuming all CPU/memory). Uses #9337 to visualize changes, but doesn't depend on it. Signed-off-by: Andrey Smirnov <andrey.smirnov@siderolabs.com>
39 lines
1.3 KiB
Go
39 lines
1.3 KiB
Go
// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this
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// file, You can obtain one at http://mozilla.org/MPL/2.0/.
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package cgroup_test
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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"github.com/siderolabs/talos/internal/pkg/cgroup"
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)
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func TestAvailableMillicores(t *testing.T) {
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t.Logf("Available CPU milli-cores: %d", cgroup.AvailableMilliCores())
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assert.GreaterOrEqual(t, cgroup.AvailableMilliCores(), cgroup.MilliCores(1000))
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}
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func TestMillicoresToShares(t *testing.T) {
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assert.Equal(t, cgroup.CPUShare(102), cgroup.MilliCoresToShares(100))
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assert.Equal(t, cgroup.CPUShare(1024), cgroup.MilliCoresToShares(1000))
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assert.Equal(t, cgroup.CPUShare(2560), cgroup.MilliCoresToShares(2500))
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}
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func TestSharesToCPUWeight(t *testing.T) {
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assert.Equal(t, uint64(4), cgroup.SharesToCPUWeight(102))
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assert.Equal(t, uint64(79), cgroup.SharesToCPUWeight(2048))
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assert.Equal(t, uint64(313), cgroup.SharesToCPUWeight(8192))
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}
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func TestMillicoresToCPUWeight(t *testing.T) {
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// depends on number of CPUs available, but for < 1000 millicores it should be same result
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assert.Equal(t, uint64(4), cgroup.MillicoresToCPUWeight(100))
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assert.Equal(t, uint64(20), cgroup.MillicoresToCPUWeight(500))
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assert.Equal(t, uint64(39), cgroup.MillicoresToCPUWeight(1000))
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}
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