Use try_flush first in tcache_dalloc.
Only do must_flush if try_flush didn't manage to free anything.
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@ -201,8 +201,11 @@ tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
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tbin = tcache_small_bin_get(tcache, binind);
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tbin = tcache_small_bin_get(tcache, binind);
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tbin_info = &tcache_bin_info[binind];
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tbin_info = &tcache_bin_info[binind];
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if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
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if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
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tcache_bin_flush_small(tsd, tcache, tbin, binind,
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if (tcache_bin_try_flush_small(tsd, tcache, tbin, binind,
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(tbin_info->ncached_max >> 1));
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(tbin_info->ncached_max >> 1)) == 0) {
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tcache_bin_flush_small(tsd, tcache, tbin, binind,
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(tbin_info->ncached_max >> 1));
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}
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}
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}
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assert(tbin->ncached < tbin_info->ncached_max);
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assert(tbin->ncached < tbin_info->ncached_max);
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tbin->ncached++;
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tbin->ncached++;
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@ -227,8 +230,11 @@ tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
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tbin = tcache_large_bin_get(tcache, binind);
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tbin = tcache_large_bin_get(tcache, binind);
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tbin_info = &tcache_bin_info[binind];
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tbin_info = &tcache_bin_info[binind];
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if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
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if (unlikely(tbin->ncached == tbin_info->ncached_max)) {
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tcache_bin_flush_large(tsd, tcache, tbin, binind,
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if (tcache_bin_try_flush_large(tsd, tcache, tbin, binind,
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(tbin_info->ncached_max >> 1));
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(tbin_info->ncached_max >> 1)) == 0) {
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tcache_bin_flush_large(tsd, tcache, tbin, binind,
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(tbin_info->ncached_max >> 1));
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}
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}
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}
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assert(tbin->ncached < tbin_info->ncached_max);
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assert(tbin->ncached < tbin_info->ncached_max);
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tbin->ncached++;
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tbin->ncached++;
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