forked from luck/tmp_suning_uos_patched
e0ac568de1
Instead allocate hash tables with just the right size based on the actual number of elements (which is almost always known beforehand, we just need to defer the hashtab allocation to the right time). The only case when we don't know the size (with the current policy format) is the new filename transitions hashtable. Here I just left the existing value. After this patch, the time to load Fedora policy on x86_64 decreases from 790 ms to 167 ms. If the unconfined module is removed, it decreases from 750 ms to 122 ms. It is also likely that other operations are going to be faster, mainly string_to_context_struct() or mls_compute_sid(), but I didn't try to quantify that. The memory usage of all hash table arrays increases from ~58 KB to ~163 KB (with Fedora policy on x86_64). Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com> Acked-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <paul@paul-moore.com> |
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| .. | ||
| avtab.c | ||
| avtab.h | ||
| conditional.c | ||
| conditional.h | ||
| constraint.h | ||
| context.h | ||
| ebitmap.c | ||
| ebitmap.h | ||
| hashtab.c | ||
| hashtab.h | ||
| mls_types.h | ||
| mls.c | ||
| mls.h | ||
| policydb.c | ||
| policydb.h | ||
| services.c | ||
| services.h | ||
| sidtab.c | ||
| sidtab.h | ||
| symtab.c | ||
| symtab.h | ||