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diff --git a/gcc-4.4.3/libstdc++-v3/doc/html/ext/pb_ds/hash_random_int_subscript_insert_timing_test.html b/gcc-4.4.3/libstdc++-v3/doc/html/ext/pb_ds/hash_random_int_subscript_insert_timing_test.html deleted file mode 100644 index a15d03ba4..000000000 --- a/gcc-4.4.3/libstdc++-v3/doc/html/ext/pb_ds/hash_random_int_subscript_insert_timing_test.html +++ /dev/null @@ -1,365 +0,0 @@ -<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" - "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> - -<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> -<head> -<meta name="generator" content="HTML Tidy for Linux/x86 (vers 12 April 2005), see www.w3.org" /> -<title>Hash Random Int Subscript Insert Timing Test</title> -<meta http-equiv="Content-Type" content="text/html; charset=us-ascii" /> -</head> -<body> -<div id="page"> -<h1>Hash-Based Random-Integer <tt><b>operator</b>[]</tt> Insert - Timing Test</h1> -<h2><a name="description" id="description">Description</a></h2> -<p>This test inserts a number of values with uniform i.i.d. - integer keys into a container, using - <tt><b>operator</b>[]</tt>. It measures the average time for - <tt><b>operator</b>[]</tt> as a function of the number of - values inserted.</p> -<p>(The test was executed with <a href="http://gcc.gnu.org/viewcvs/*checkout*/trunk/libstdc%2B%2B-v3/testsuite/performance/ext/pb_ds/random_int_subscript_insert_timing.cc"><tt>hash_random_int_subscript_insert_timing_test</tt></a> - 200 200 2100)</p> -<h2><a name="purpose" id="purpose">Purpose</a></h2> -<p>The test primarily checks the effect of different underlying - hash-tables (see <a href="hash_based_containers.html">Design::Associative - Containers::Associative Containers::Hash-Based - Containers</a>).</p> -<h2><a name="results" id="results">Results</a></h2> -<p>Figures <a href="#NCCG">NCCG</a>, <a href="#NCCM">NCCM</a>, - and <a href="#NCCL">NCCL</a> show the results for the native - and collision-chaining types in <a href="assoc_performance_tests.html#gcc"><u>g++</u></a>, <a href="assoc_performance_tests.html#msvc"><u>MSVC++</u></a>, and - <a href="assoc_performance_tests.html#local"><u>local</u></a>, - respectively; Figures <a href="#NGPG">NGPG</a>, <a href="#NGPM">NGPM</a>, and <a href="#NGPL">NGPL</a> show the results - for the native and probing types in <a href="assoc_performance_tests.html#gcc"><u>g++</u></a>, <a href="assoc_performance_tests.html#msvc"><u>msvc++</u></a>, and - <a href="assoc_performance_tests.html#local"><u>local</u></a> - respectively; Figures <a href="#CCGPG">CCGPG</a>, <a href="#CCGPM">CCGPM</a>, and <a href="#CCGPL">CCGPL</a> compare the - results for the collision-chaining and probing types of - <tt>pb_ds</tt> only, in <a href="assoc_performance_tests.html#gcc"><u>g++</u></a>, <a href="assoc_performance_tests.html#msvc"><u>MSVC++</u></a>, and - <a href="assoc_performance_tests.html#local"><u>local</u></a> - respectively.</p> -<div id="NCCG_res_div"> -<div id="NCCG_gcc"> -<div id="NCCG_cc_hash_random_int_subscript_timing_test_insert"> -<div id="NCCG_assoc"> -<div id="NCCG_Native_and_collision-chaining_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NCCG" id="NCCG"><img src="cc_hash_random_int_subscript_timing_test_insert_gcc.png" alt="no image" /></a></h6>NCCG: Native and collision-chaining hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#gcc">g++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -n_hash_map_ncah- -<tt>std::tr1::unordered_map</tt> with <tt>cache_hash_code</tt> = <tt><b>false</b></tt></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div1_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/1</i></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div1_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/1</i></li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="NCCM_res_div"> -<div id="NCCM_msvc"> -<div id="NCCM_cc_hash_random_int_subscript_timing_test_insert"> -<div id="NCCM_assoc"> -<div id="NCCM_Native_and_collision-chaining_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NCCM" id="NCCM"><img src="cc_hash_random_int_subscript_timing_test_insert_msvc.png" alt="no image" /></a></h6>NCCM: Native and collision-chaining hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#msvc">msvc++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -n_hash_map_ncah- -<tt>stdext::hash_map</tt></li> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div1_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/1</i></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div1_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/1</i></li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="NCCL_res_div"> -<div id="NCCL_local"> -<div id="NCCL_cc_hash_random_int_subscript_timing_test_insert"> -<div id="NCCL_assoc"> -<div id="NCCL_Native_and_collision-chaining_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style = "border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NCCL" id= "NCCL"><img src="cc_hash_random_int_subscript_timing_test_insert_local.png" alt="no image" /></a></h6>NCCL: Native and collision-chaining hash random int insert timing test using <tt><b>operator</b></tt> - <a href = "assoc_performance_tests.html#local">local</a></div><div style = "width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="NGPG_res_div"> -<div id="NGPG_gcc"> -<div id="NGPG_gp_hash_random_int_subscript_timing_test_insert"> -<div id="NGPG_assoc"> -<div id="NGPG_Native_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NGPG" id="NGPG"><img src="gp_hash_random_int_subscript_timing_test_insert_gcc.png" alt="no image" /></a></h6>NGPG: Native and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#gcc">g++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -gp_hash_mod_quadp_prime_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="quadratic_probe_fn.html"><tt>quadratic_probe_fn</tt></a> -</li> -<li> -n_hash_map_ncah- -<tt>std::tr1::unordered_map</tt> with <tt>cache_hash_code</tt> = <tt><b>false</b></tt></li> -<li> -gp_hash_mask_linp_exp_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="linear_probe_fn.html"><tt>linear_probe_fn</tt></a> -</li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="NGPM_res_div"> -<div id="NGPM_msvc"> -<div id="NGPM_gp_hash_random_int_subscript_timing_test_insert"> -<div id="NGPM_assoc"> -<div id="NGPM_Native_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NGPM" id="NGPM"><img src="gp_hash_random_int_subscript_timing_test_insert_msvc.png" alt="no image" /></a></h6>NGPM: Native and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#msvc">msvc++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -n_hash_map_ncah- -<tt>stdext::hash_map</tt></li> -<li> -gp_hash_mod_quadp_prime_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="quadratic_probe_fn.html"><tt>quadratic_probe_fn</tt></a> -</li> -<li> -gp_hash_mask_linp_exp_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="linear_probe_fn.html"><tt>linear_probe_fn</tt></a> -</li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="NGPL_res_div"> -<div id="NGPL_local"> -<div id="NGPL_gp_hash_random_int_subscript_timing_test_insert"> -<div id="NGPL_assoc"> -<div id="NGPL_Native_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style = "border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="NGPL" id= "NGPL"><img src="gp_hash_random_int_subscript_timing_test_insert_local.png" alt="no image" /></a></h6>NGPL: Native and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href = "assoc_performance_tests.html#local">local</a></div><div style = "width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="CCGPG_res_div"> -<div id="CCGPG_gcc"> -<div id="CCGPG_ccgp_hash_random_int_subscript_timing_test_insert"> -<div id="CCGPG_assoc"> -<div id="CCGPG_Collision-chaining_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="CCGPG" id="CCGPG"><img src="ccgp_hash_random_int_subscript_timing_test_insert_gcc.png" alt="no image" /></a></h6>CCGPG: Collision-chaining and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#gcc">g++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -gp_hash_mod_quadp_prime_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="quadratic_probe_fn.html"><tt>quadratic_probe_fn</tt></a> -</li> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -gp_hash_mask_linp_exp_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="linear_probe_fn.html"><tt>linear_probe_fn</tt></a> -</li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="CCGPM_res_div"> -<div id="CCGPM_msvc"> -<div id="CCGPM_ccgp_hash_random_int_subscript_timing_test_insert"> -<div id="CCGPM_assoc"> -<div id="CCGPM_Collision-chaining_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style="border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="CCGPM" id="CCGPM"><img src="ccgp_hash_random_int_subscript_timing_test_insert_msvc.png" alt="no image" /></a></h6>CCGPM: Collision-chaining and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href="assoc_performance_tests.html#msvc">msvc++</a><p>In the above figure, the names in the legends have the following meaning:</p> -<ol> -<li> -cc_hash_mod_prime_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -cc_hash_mask_exp_nea_lc_1div8_1div2_nsth_map- -<a href="cc_hash_table.html"><tt>cc_hash_table</tt></a> -with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, and <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i></li> -<li> -gp_hash_mod_quadp_prime_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mod_range_hashing.html"><tt>direct_mod_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_prime_size_policy.html"><tt>hash_prime_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="quadratic_probe_fn.html"><tt>quadratic_probe_fn</tt></a> -</li> -<li> -gp_hash_mask_linp_exp_nea_lc_1div8_1div2_nsth_map- -<a href="gp_hash_table.html"><tt>gp_hash_table</tt></a> - with <tt>Comb_Hash_Fn</tt> = <a href="direct_mask_range_hashing.html"><tt>direct_mask_range_hashing</tt></a> -, <tt>Resize_Policy</tt> = <a href="hash_standard_resize_policy.html"><tt>hash_standard_resize_policy</tt></a> - with <tt>Size_Policy</tt> = <a href="hash_exponential_size_policy.html"><tt>hash_exponential_size_policy</tt></a> -, and <tt>Trigger_Policy</tt> = <a href="hash_load_check_resize_trigger.html"><tt>hash_load_check_resize_trigger</tt></a> - with <i>α<sub>min</sub></i> = <i>1/8</i> and <i>α<sub>max</sub></i> = <i>1/2</i>, and <tt>Probe_Fn</tt> = <a href="linear_probe_fn.html"><tt>linear_probe_fn</tt></a> -</li> -</ol> -</div><div style="width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<div id="CCGPL_res_div"> -<div id="CCGPL_local"> -<div id="CCGPL_ccgp_hash_random_int_subscript_timing_test_insert"> -<div id="CCGPL_assoc"> -<div id="CCGPL_Collision-chaining_and_probing_hash_random_int_insert_timing_test_using__tt__b_operator_455b__455tt_"><div style = "border-style: dotted; border-width: 1px; border-color: lightgray"><h6 class="c1"><a name="CCGPL" id= "CCGPL"><img src="ccgp_hash_random_int_subscript_timing_test_insert_local.png" alt="no image" /></a></h6>CCGPL: Collision-chaining and probing hash random int insert timing test using <tt><b>operator</b></tt> - <a href = "assoc_performance_tests.html#local">local</a></div><div style = "width: 100%; height: 20px"></div></div> -</div> -</div> -</div> -</div> -<h2><a name="observations" id="observations">Observations</a></h2> -<p>In this setting, as in <a href="hash_text_find_find_timing_test.html">Hash-Based Text - <tt>find</tt> Find Timing Test</a> and <a href="hash_random_int_find_find_timing_test.html">Hash-Based - Random-Integer <tt>find</tt> Find Timing Test</a> , the choice - of underlying hash-table underlying hash-table (see <a href="hash_based_containers.html">Design::Associative - Containers::Hash-Based Containers</a> ) affects performance - most, then the range-hashing scheme (See <a href="hash_based_containers.html#hash_policies">Design::Associative - Containers::Hash-Based Containers::Hash Policies</a> ), and, - only finally, other policies.</p> -<p>There are some differences, however:</p> -<ol> -<li>In this setting, probing tables function sometimes more - efficiently than collision-chaining tables (see Figures - <a href="#CCGPG">CCGPG</a> and <a href="#CCGPM">CCGPM</a> ). - This is explained shortly.</li> -<li>The performance graphs have a "saw-tooth" shape. The - average insert time rises and falls. As values are inserted - into the container, the load factor grows larger. Eventually, - a resize occurs. The reallocations and rehashing are - relatively expensive. After this, the load factor is smaller - than before.</li> -</ol> -<p>Collision-chaining containers use indirection for greater - flexibility; probing containers store values contiguously, in - an array (see Figure <a href="motivation.html#different_underlying_data_structures">Motivation::Different - underlying data structures</a> A and B, respectively). It - follows that for simple data types, probing containers access - their allocator less frequently than collision-chaining - containers, (although they still have less efficient probing - sequences). This explains why some probing containers fare - better than collision-chaining containers in this case.</p> -<p>Within each type of hash-table, the range-hashing scheme - affects performance more than other policies. This is similar - to the situation in <a href="hash_text_find_find_timing_test.html">Hash-Based Text - <tt>find</tt> Find Timing Test</a> and <a href="hash_random_int_find_find_timing_test.html">Hash-Based - Random-Integer <tt>find</tt> Find Timing Test</a>. - Unsurprisingly, however, containers with <u>lower</u> -<i>alpha<sub>max</sub></i> perform <u>worse</u> in this case, - since more re-hashes are performed.</p> -<p><a href="assoc_performance_tests.html#hash_based_types">Observations::Hash-Based - Container Types</a> summarizes some observations on hash-based - containers; <a href="assoc_performance_tests.html#hash_based_policies">Observations::Hash-Based - Containers' Policies</a> summarizes some observations on - hash-based containers' policies.</p> -</div> -</body> -</html> |