If pack-objects hit the memory limit, it deletes objects from the delta
window.
This patch make it only delete the data, which is recomputed, if needed again.
Signed-off-by: Martin Koegler <mkoegler@xxxxxxxxxxxxxxxxx>
---
What about this not really tested patch for dealing with memory pressure in git-pack-objects?
It will slow down the repack in the case of memory pressure, but missing memory will not affect the results.
builtin-pack-objects.c | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index 6f8f388..231d65f 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -1464,7 +1464,7 @@ static unsigned int check_delta_limit(struct object_entry *me, unsigned int n)
return m;
}
-static unsigned long free_unpacked(struct unpacked *n)
+static unsigned long free_unpacked_data(struct unpacked *n)
{
unsigned long freed_mem = sizeof_delta_index(n->index);
free_delta_index(n->index);
@@ -1474,6 +1474,12 @@ static unsigned long free_unpacked(struct unpacked *n)
free(n->data);
n->data = NULL;
}
+ return freed_mem;
+}
+
+static unsigned long free_unpacked(struct unpacked *n)
+{
+ unsigned long freed_mem = free_unpacked_data(n);
n->entry = NULL;
n->depth = 0;
return freed_mem;
@@ -1514,7 +1520,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
mem_usage > window_memory_limit &&
count > 1) {
uint32_t tail = (idx + window - count) % window;
- mem_usage -= free_unpacked(array + tail);
+ mem_usage -= free_unpacked_data(array + tail);
count--;
}
@@ -1547,6 +1553,9 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
if (!m->entry)
break;
ret = try_delta(n, m, max_depth, &mem_usage);
+ if (window_memory_limit &&
+ mem_usage > window_memory_limit)
+ mem_usage -= free_unpacked_data(m);
if (ret < 0)
break;
else if (ret > 0)
--
1.5.4.g42f90
-
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