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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,126 @@ | ||
| // Copyright 2022 PingCAP, Inc. | ||
| // | ||
| // 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. | ||
|
|
||
| package kv | ||
|
|
||
| import ( | ||
| "testing" | ||
|
|
||
| "github.com/docker/go-units" | ||
| "github.com/stretchr/testify/require" | ||
| ) | ||
|
|
||
| func TestKVMemBufInterweaveAllocAndRecycle(t *testing.T) { | ||
| type testCase struct { | ||
| AllocSizes []int | ||
| FinalAvailableByteBufCaps []int | ||
| } | ||
| for _, tc := range []testCase{ | ||
| { | ||
| AllocSizes: []int{ | ||
| 1 * units.MiB, | ||
| 2 * units.MiB, | ||
| 3 * units.MiB, | ||
| 4 * units.MiB, | ||
| 5 * units.MiB, | ||
| }, | ||
| // [2] => [2,4] => [2,4,8] => [4,2,8] => [4,2,8,16] | ||
| FinalAvailableByteBufCaps: []int{ | ||
| 4 * units.MiB, | ||
| 2 * units.MiB, | ||
| 8 * units.MiB, | ||
| 16 * units.MiB, | ||
| }, | ||
| }, | ||
| { | ||
| AllocSizes: []int{ | ||
| 5 * units.MiB, | ||
| 4 * units.MiB, | ||
| 3 * units.MiB, | ||
| 2 * units.MiB, | ||
| 1 * units.MiB, | ||
| }, | ||
| // [16] => [16] => [16] => [16] => [16] | ||
| FinalAvailableByteBufCaps: []int{16 * units.MiB}, | ||
| }, | ||
| { | ||
| AllocSizes: []int{5, 4, 3, 2, 1}, | ||
| // [1] => [1] => [1] => [1] => [1] | ||
| FinalAvailableByteBufCaps: []int{1 * units.MiB}, | ||
| }, | ||
| { | ||
| AllocSizes: []int{ | ||
| 1 * units.MiB, | ||
| 2 * units.MiB, | ||
| 3 * units.MiB, | ||
| 2 * units.MiB, | ||
| 1 * units.MiB, | ||
| 5 * units.MiB, | ||
| }, | ||
| // [2] => [2,4] => [2,4,8] => [2,8,4] => [8,4,2] => [8,4,2,16] | ||
| FinalAvailableByteBufCaps: []int{ | ||
| 8 * units.MiB, | ||
| 4 * units.MiB, | ||
| 2 * units.MiB, | ||
| 16 * units.MiB, | ||
| }, | ||
| }, | ||
| } { | ||
| testKVMemBuf := &kvMemBuf{} | ||
| for _, allocSize := range tc.AllocSizes { | ||
| testKVMemBuf.AllocateBuf(allocSize) | ||
| testKVMemBuf.Recycle(testKVMemBuf.buf) | ||
| } | ||
| require.Equal(t, len(tc.FinalAvailableByteBufCaps), len(testKVMemBuf.availableBufs)) | ||
| for i, bb := range testKVMemBuf.availableBufs { | ||
| require.Equal(t, tc.FinalAvailableByteBufCaps[i], bb.cap) | ||
| } | ||
| } | ||
| } | ||
|
|
||
| func TestKVMemBufBatchAllocAndRecycle(t *testing.T) { | ||
| type testCase struct { | ||
| AllocSizes []int | ||
| FinalAvailableByteBufCaps []int | ||
| } | ||
| testKVMemBuf := &kvMemBuf{} | ||
| bBufs := []*bytesBuf{} | ||
| for i := 0; i < maxAvailableBufSize; i++ { | ||
| testKVMemBuf.AllocateBuf(1 * units.MiB) | ||
| bBufs = append(bBufs, testKVMemBuf.buf) | ||
| } | ||
| for i := 0; i < maxAvailableBufSize; i++ { | ||
| testKVMemBuf.AllocateBuf(2 * units.MiB) | ||
| bBufs = append(bBufs, testKVMemBuf.buf) | ||
| } | ||
| for _, bb := range bBufs { | ||
| testKVMemBuf.Recycle(bb) | ||
| } | ||
| require.Equal(t, maxAvailableBufSize, len(testKVMemBuf.availableBufs)) | ||
| for _, bb := range testKVMemBuf.availableBufs { | ||
| require.Equal(t, 4*units.MiB, bb.cap) | ||
| } | ||
| bBufs = bBufs[:0] | ||
| for i := 0; i < maxAvailableBufSize; i++ { | ||
| testKVMemBuf.AllocateBuf(1 * units.MiB) | ||
| bb := testKVMemBuf.buf | ||
| require.Equal(t, 4*units.MiB, bb.cap) | ||
| bBufs = append(bBufs, bb) | ||
| require.Equal(t, maxAvailableBufSize-i-1, len(testKVMemBuf.availableBufs)) | ||
| } | ||
| for _, bb := range bBufs { | ||
| testKVMemBuf.Recycle(bb) | ||
| } | ||
| require.Equal(t, maxAvailableBufSize, len(testKVMemBuf.availableBufs)) | ||
| } |
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