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Implement chained (optimized) read in the primary OSD code

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This commit is contained in:
Vitaliy Filippov
2021-04-10 17:44:12 +03:00
parent 6950b8e3a0
commit 38a3df4a0e
11 changed files with 768 additions and 78 deletions
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src/osd_rmw.cpp
+13 -10
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@@ -246,20 +246,23 @@ void reconstruct_stripes_jerasure(osd_rmw_stripe_t *stripes, int pg_size, int pg
{
if (stripes[role].read_end != 0 && stripes[role].missing)
{
for (int other = 0; other < pg_size; other++)
if (stripes[role].read_end > stripes[role].read_start)
{
if (stripes[other].read_end != 0 && !stripes[other].missing)
for (int other = 0; other < pg_size; other++)
{
assert(stripes[other].read_start <= stripes[role].read_start);
assert(stripes[other].read_end >= stripes[role].read_end);
data_ptrs[other] = (char*)(stripes[other].read_buf + (stripes[role].read_start - stripes[other].read_start));
if (stripes[other].read_end != 0 && !stripes[other].missing)
{
assert(stripes[other].read_start <= stripes[role].read_start);
assert(stripes[other].read_end >= stripes[role].read_end);
data_ptrs[other] = (char*)(stripes[other].read_buf + (stripes[role].read_start - stripes[other].read_start));
}
}
data_ptrs[role] = (char*)stripes[role].read_buf;
jerasure_matrix_dotprod(
pg_minsize, OSD_JERASURE_W, decoding_matrix+(role*pg_minsize), dm_ids, role,
data_ptrs, data_ptrs+pg_minsize, stripes[role].read_end - stripes[role].read_start
);
}
data_ptrs[role] = (char*)stripes[role].read_buf;
jerasure_matrix_dotprod(
pg_minsize, OSD_JERASURE_W, decoding_matrix+(role*pg_minsize), dm_ids, role,
data_ptrs, data_ptrs+pg_minsize, stripes[role].read_end - stripes[role].read_start
);
for (int other = 0; other < pg_size; other++)
{
if (stripes[other].read_end != 0 && !stripes[other].missing)