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Perf: Traverse commit history instead of reading the packfile #698
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ajnavarro
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ajnavarro:perf/list-only-reachable-objects
Feb 18, 2019
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
|
|
@@ -101,14 +101,14 @@ func TestCommitsParents(t *testing.T) { | |
| }{ | ||
| { | ||
| name: "test commits parents 1", | ||
| hash: "e8d3ffab552895c19b9fcf7aa264d277cde33881", | ||
| hash: "6ecf0ef2c2dffb796033e5a02219af86ec6584e5", | ||
| parents: []string{ | ||
| "918c48b83bd081e863dbe1b80f8998f058cd8294", | ||
| }, | ||
| }, | ||
| { | ||
| name: "test commits parents 2", | ||
| hash: "6ecf0ef2c2dffb796033e5a02219af86ec6584e5", | ||
| hash: "e8d3ffab552895c19b9fcf7aa264d277cde33881", | ||
| parents: []string{ | ||
| "918c48b83bd081e863dbe1b80f8998f058cd8294", | ||
| }, | ||
|
|
@@ -137,30 +137,30 @@ func TestCommitsParents(t *testing.T) { | |
| }, | ||
| { | ||
| name: "test commits parents 6", | ||
| hash: "a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69", | ||
| hash: "35e85108805c84807bc66a02d91535e1e24b38b9", | ||
| parents: []string{ | ||
| "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| }, | ||
| }, | ||
| { | ||
| name: "test commits parents 7", | ||
| hash: "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| parents: []string{ | ||
| "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| }, | ||
| name: "test commits parents 7", | ||
| hash: "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| parents: []string{}, | ||
| }, | ||
| { | ||
| name: "test commits parents 8", | ||
| hash: "35e85108805c84807bc66a02d91535e1e24b38b9", | ||
| hash: "a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69", | ||
| parents: []string{ | ||
| "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| }, | ||
| }, | ||
| { | ||
| name: "test commits parents 9", | ||
| hash: "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| parents: []string{}, | ||
| name: "test commits parents 9", | ||
| hash: "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| parents: []string{ | ||
| "b029517f6300c2da0f4b651b8642506cd6aaf45d", | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
|
|
@@ -188,65 +188,65 @@ func TestCommitsIndexKeyValueIter(t *testing.T) { | |
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 682, | ||
| Offset: 186, | ||
| }), | ||
| []interface{}{ | ||
| "1669dce138d9b841a518c64b10914d88f5e488ea", | ||
| "6ecf0ef2c2dffb796033e5a02219af86ec6584e5", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 1292, | ||
| Offset: 12, | ||
| }), | ||
| []interface{}{ | ||
| "35e85108805c84807bc66a02d91535e1e24b38b9", | ||
| "e8d3ffab552895c19b9fcf7aa264d277cde33881", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 186, | ||
| Offset: 353, | ||
| }), | ||
| []interface{}{ | ||
| "6ecf0ef2c2dffb796033e5a02219af86ec6584e5", | ||
| "918c48b83bd081e863dbe1b80f8998f058cd8294", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 353, | ||
| Offset: 516, | ||
| }), | ||
| []interface{}{ | ||
| "918c48b83bd081e863dbe1b80f8998f058cd8294", | ||
| "af2d6a6954d532f8ffb47615169c8fdf9d383a1a", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 905, | ||
| Offset: 682, | ||
| }), | ||
| []interface{}{ | ||
| "a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69", | ||
| "1669dce138d9b841a518c64b10914d88f5e488ea", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 516, | ||
| Offset: 1292, | ||
| }), | ||
| []interface{}{ | ||
| "af2d6a6954d532f8ffb47615169c8fdf9d383a1a", | ||
| "35e85108805c84807bc66a02d91535e1e24b38b9", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
|
|
@@ -265,22 +265,22 @@ func TestCommitsIndexKeyValueIter(t *testing.T) { | |
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 1130, | ||
| Offset: 905, | ||
| }), | ||
| []interface{}{ | ||
| "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| "[email protected]", | ||
| "a5b8b09e2f8fcb0bb99d3ccb0958157b40890d69", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| { | ||
| assertEncodeKey(t, &packOffsetIndexKey{ | ||
| Repository: path, | ||
| Packfile: "323a4b6b5de684f9966953a043bc800154e5dbfa", | ||
| Offset: 12, | ||
| Offset: 1130, | ||
| }), | ||
| []interface{}{ | ||
| "e8d3ffab552895c19b9fcf7aa264d277cde33881", | ||
| "[email protected]", | ||
| "b8e471f58bcbca63b07bda20e428190409c2db47", | ||
| "[email protected]", | ||
| }, | ||
| }, | ||
| } | ||
|
|
||
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Maybe we should force order by time (WDYT)?
By default pre-order will be used, which I think works slightly different than native git implementation.
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but here we don't want to mimic 100% git log output, we want to reduce unnecessary disk reads. Ordering commits will not give us any performance improvement.