Merge pull request #620 from kswiecicki/host-all-spread-test-fix

Remove allocsSpreadAcrossAllNumaNodes test case

Author: lukaszstolarczuk

Diff for: test/memspaces/memspace_host_all.cpp

@@ -152,91 +152,3 @@ TEST_F(memspaceHostAllProviderTest, hostAllDefaults) {
     UT_ASSERTeq(ret, UMF_RESULT_SUCCESS);
     umfMemoryProviderDestroy(hProvider);
 }
-
-TEST_F(memspaceHostAllProviderTest, allocsSpreadAcrossAllNumaNodes) {
-    // This testcase is unsuitable for TSan.
-#ifdef __SANITIZE_THREAD__
-    GTEST_SKIP();
-#endif
-
-    // Arbitrary allocation size, should be big enough to avoid unnecessarily
-    // prolonging the test execution.
-    size_t size = SIZE_4M;
-    size_t alignment = 0;
-    // Unallocated memory space that has to be left in an attempt to avoid OOM
-    // killer - 512MB.
-    size_t remainingSpace = SIZE_4M * 128;
-
-    long long numaCombinedFreeSize = 0;
-    // Gather free size of all numa nodes.
-    for (auto &id : nodeIds) {
-        long long numaFreeSize = 0;
-        long long numaSize = numa_node_size64(id, &numaFreeSize);
-        UT_ASSERTne(numaSize, -1);
-        UT_ASSERT(numaFreeSize >= (long long)(remainingSpace + size));
-
-        numaCombinedFreeSize += numaFreeSize;
-    }
-
-    umf_result_t umf_ret = UMF_RESULT_SUCCESS;
-    // Create allocations until all the NUMA nodes until there's space only for
-    // one allocation.
-    std::vector<void *> allocs;
-    std::unordered_set<size_t> allocNodeIds;
-    while (numaCombinedFreeSize >= (long long)(remainingSpace + size)) {
-        void *ptr = nullptr;
-        umf_ret = umfMemoryProviderAlloc(hProvider, size, alignment, &ptr);
-        if (umf_ret != UMF_RESULT_SUCCESS) {
-            UT_ASSERTeq(umf_ret, UMF_RESULT_ERROR_MEMORY_PROVIDER_SPECIFIC);
-            const char *msg = nullptr;
-            int32_t err = 0;
-            umfMemoryProviderGetLastNativeError(hProvider, &msg, &err);
-            // In this scenario, 'UMF_OS_RESULT_ERROR_ALLOC_FAILED' indicates OOM.
-            UT_ASSERTeq(err, UMF_OS_RESULT_ERROR_ALLOC_FAILED);
-            break;
-        }
-
-        UT_ASSERTne(ptr, nullptr);
-        // Access the allocation, so that all the pages associated with it are
-        // allocated on available NUMA nodes.
-        memset(ptr, 0xFF, size);
-
-        int mode = -1;
-        std::vector<size_t> boundNodeIds;
-        size_t allocNodeId = SIZE_MAX;
-        getAllocationPolicy(ptr, maxNodeId, mode, boundNodeIds, allocNodeId);
-
-        // In case of 'HOST ALL' memspace, the default set of nodes (that
-        // contains all available nodes) is used but get_mempolicy() would
-        // return an empty set of nodes.
-        UT_ASSERTeq(mode, MPOL_DEFAULT);
-        UT_ASSERTeq(boundNodeIds.size(), 0);
-
-        // Confirm that the memory is allocated on one of the nodes in
-        // 'HOST ALL' memspace.
-        auto it = std::find(nodeIds.begin(), nodeIds.end(), allocNodeId);
-        UT_ASSERT(it != nodeIds.end());
-
-        allocs.push_back(ptr);
-        allocNodeIds.insert(allocNodeId);
-
-        numaCombinedFreeSize -= size;
-    }
-
-    UT_ASSERT(allocs.size() >= nodeIds.size());
-    for (auto &ptr : allocs) {
-        umf_ret = umfMemoryProviderFree(hProvider, ptr, size);
-        UT_ASSERTeq(umf_ret, UMF_RESULT_SUCCESS);
-    }
-
-    // TODO: we want to enable this check only when tests are running under QEMU.
-    // Otherwise it might sporadically fail on a real system where other processes
-    // occupied all memory from a aparticular NUMA node.
-#if 0
-    // Confirm that all the NUMA nodes bound to 'HOST ALL' memspace were exhausted.
-    for (auto &id : nodeIds) {
-        auto it = std::find(allocNodeIds.begin(), allocNodeIds.end(), id);
-        UT_ASSERT(it != allocNodeIds.end());
-    }
-#endif
-}