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INI Settings
Dan Miller edited this page Nov 19, 2015
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Here is the raw list of all possible ini settings that can go in your /etc/hhvm/php.ini or /etc/hhvm/server.ini file. Not all of them are useful, many are redundant, tons are useless (or only useful at Facebook scale) and many others are useful. There is lots of cleanup work to do here, but for now you get a sorted list, sorry.
This list is just the HHVM-specific options. Many standard PHP options are also supported by HHVM, meaning the same thing that they do to PHP5. So your favorite option may just work out of the box with the same name.
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.admin_server.password | A password required for all requests to the admin server, other than the index. Is passed to the request as the auth request var. |
empty string |
| hhvm.admin_server.port | The port the admin server should listen on. If set to 0, the admin server is not started. | 0 |
| hhvm.admin_server.thread_count | The number of threads the admin server should use. | 1 |
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.debugger.default_sandbox_path | ||
| hhvm.debugger.disable_ipv6 | ||
| hhvm.debugger.enable_debugger | ||
| hhvm.debugger.enable_debugger_color | ||
| hhvm.debugger.enable_debugger_prompt | ||
| hhvm.debugger.enable_debugger_server | ||
| hhvm.debugger.enable_debugger_usage_log | ||
| hhvm.debugger.port | ||
| hhvm.debugger.rpc.default_auth | ||
| hhvm.debugger.rpc.default_port | ||
| hhvm.debugger.rpc.default_timeout | ||
| hhvm.debugger.rpc.host_domain | ||
| hhvm.debugger.signal_timeout | ||
| hhvm.debugger.startup_document |
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.enable_alternative | ||
| hhvm.enable_args_in_backtraces | show arguments in PHP backtraces | True |
| hhvm.enable_asp_tags | is <% %> allowed |
False |
| hhvm.enable_emit_switch | ||
| hhvm.enable_emitter_stats | ||
| hhvm.enable_hip_hop_experimental_syntax | ||
| hhvm.enable_numa | Enable NUMA Integration | False |
| hhvm.enable_numa_local | ||
| hhvm.enable_obj_destruct_call | If false, __destruct() methods will not be called on an object at the end of the request. This can be a performance benefit if your system and application can handle the memory requirements. Deallocation can occur all at one time. If true, then HHVM will run all __destruct() methods in the usual way |
False |
| hhvm.enable_short_tags | allow <?
|
True |
| hhvm.enable_xhp | Enable XHP support in PHP files. (XHP is always enabled in Hack files.) | False |
| hhvm.enable_zend_compat | Enable the support layer for Zend PHP extensions. | False |
| hhvm.enable_zend_sorting | Enable the support for Zend PHP alike sort stability | False |
| hhvm.force_hh | Treat all code as Hack, even if it starts with <?php. This is a sort of "master option" -- several other behavioral options have their defaults to be whatever this option is set to. See below. |
False |
The translation cache stores the JIT'd code. It's split into several sections depending on how often the code is (or is expected to be) executed. The sum of all the bits has to be less than 2GB.
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.jit_a_size | Size in bytes of main translation cache. | 62914560 (60 MB) |
| hhvm.jit_a_cold_size | Size of cold code cache. Code that is unlikely to be executed is deemed cold. (Recommended: 0.5x hhvm.jit_a_size) | 25165824 (24 MB) |
| hhvm.jit_a_frozen_size | Size of extremely cold code cache. Code that is almost never executed, or executed once and then freed up, is deemed frozen. (Recommended: 1x hhvm.jit_a_size) | 41943040 (40 MB) |
| hhvm.jit_a_hot_size | Size of hot code cache. (Enabled only in RepoAuthoritative mode) | 0 |
| hhvm.jit_a_prof_size | Size of profiling code cache. (Recommended: 1x hhvm.jit_a_size) | 67108864 (64 MB) |
| hhvm.jit_a_max_usage | Maximum amount of code to generate. (Recommended: 1x hhvm.jit_a_size) | 62914560 (60 MB) |
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.jit | Enables the JIT | False on Windows, True elsewhere |
| hhvm.jit_always_interp_one | ||
| hhvm.jit_disabled_by_hphpd | ||
| hhvm.jit_enable_rename_function | If false, rename_function() will throw a fatal error. And HHVM knowing that functions cannot be renamed can increase performance. |
False |
| hhvm.jit_global_data_size | ||
| hhvm.jit_global_translation_limit | ||
| hhvm.jit_keep_dbg_files | ||
| hhvm.jit_llvm | Experimental LLVM backend, see this blog post for more information | False |
| hhvm.jit_loops | ||
| hhvm.jit_max_translations | Limits the number of translations allowed per srckey, and once this limit is hit any further retranslation requests will result in a call out to the interpreter. |
12 |
| hhvm.jit_no_gdb | ||
| hhvm.jit_pgo | ||
| hhvm.jit_pgo_hot_only | ||
| hhvm.jit_pgo_region_selector | ||
| hhvm.jit_pgo_release_vv_min_percent | ||
| hhvm.jit_pgo_threshold | ||
| hhvm.jit_pgo_use_post_conditions | ||
| hhvm.jit_profile_interp_requests | ||
| hhvm.jit_profile_path | ||
| hhvm.jit_profile_record | ||
| hhvm.jit_profile_requests | ||
| hhvm.jit_pseudomain | Whether or not to JIT pseudomains (code that doesn't exist inside a class) | True |
| hhvm.jit_region_selector | ||
| hhvm.jit_relocation_size | ||
| hhvm.jit_require_write_lease | ||
| hhvm.jit_stress_lease | ||
| hhvm.jit_stress_type_pred_percent | ||
| hhvm.jit_target_cache_size | ||
| hhvm.jit_timer | ||
| hhvm.jit_trans_counters | ||
| hhvm.jit_type_prediction | ||
| hhvm.jit_unlikely_dec_ref_percent | ||
| hhvm.jit_use_vtune_api |
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.server.apc.expire_on_sets | Enables item purging on expiration | False |
| hhvm.server.apc.purge_frequency | Expired items will be purged every this many APC sets | 4096 |
| hhvm.server.apc.purge_rate | Evict at most this many items on each purge. No limit if -1. | -1 |
For changes from PHP 5 to PHP 7 which are backwards incompatible, INI options are available to choose which behavior HHVM respects. (Features which are not backwards incompatible are always available.)
The vast majority of users will want to just set hhvm.php7.all = 1 to fully enable PHP 7 mode and can ignore the rest of the options in this section. They are available primarily for advanced users who want to do a more gradual migration or otherwise track down compatibility issues.
| INI Setting | Documentation | Default | PHP 7 RFC |
|---|---|---|---|
| hhvm.php7.all | Default value for all of the below | False | N/A |
| hhvm.php7.deprecate_old_style_ctors | Disallow and warn when using old PHP 4 constructors | hhvm.php7.all | Remove PHP 4 Constructors |
| hhvm.php7.int_semantics | Change some edge-case int and float behavior, such as divide/mod by zero | hhvm.php7.all | Integer semantics with some changes due to engine exceptions |
| hhvm.php7.ltr_assign | Make order of assignment in list() lvalues consistent |
hhvm.php7.all | Abstract syntax tree |
| hhvm.php7.no_hex_numerics | Don't consider hex strings to be numeric | hhvm.php7.all | Remove hex support in numeric strings |
| hhvm.php7.scalar_types | Enable PHP 7-style scalar type annotations (NB: not the same as Hack's) | hhvm.php7.all | Scalar type declarations |
| hhvm.php7.uvs | Fix some odd precedence and order of evaluation issues | hhvm.php7.all | Uniform variable syntax |
| INI Setting | Documentation | Default |
|---|---|---|
| hhvm.allow_hhas | Allow executing "hhas" files -- code written directly in HHBC. Directly writing HHBC can easily crash HHVM, and is rarely a useful thing to do anyways. | False |
| hhvm.authoritative_mode | ||
| hhvm.bypass_access_check | on makes debugger bypass access checks on class members |
|
| hhvm.check_flush_on_user_close | Return error code is closing a stream in PHP did not flush the stream s well | True |
| hhvm.check_repo_auth_deserialize | ||
| hhvm.check_return_type_hints | Whether to check return type hints at runtime | True |
| hhvm.check_sym_link | Whether to follow symlinks when looking up units in the bytecode cache | True |
| hhvm.code_coverage_output_file | specify an output file to store code coverage results at end of a script run | |
| hhvm.color | ||
| hhvm.debug.clear_input_on_success | automatically delete requests that had a 200 response code when recording input | True |
| hhvm.debug.core_dump_email | email address to email core dump to | |
| hhvm.debug.core_dump_report | whether or not to generate a core dump report | True |
| hhvm.debug.core_dump_report_directory | where to put the core dump report | /tmp |
| hhvm.debug.full_backtrace | ||
| hhvm.debug.local_memcache | ||
| hhvm.debug.memcache_read_only | ||
| hhvm.debug.native_stack_trace | ||
| hhvm.debug.profiler_output_dir | Building with GOOGLE_CPU_PROFILER set lets you collect profiles from | |
| 5 the server or from the command line, this option lets you control where profiles get created | ||
| hhvm.debug.record_input | whether to record bad HTTP requests to a file /tmp/hphp_request_XXXXXX"
|
False |
| hhvm.debug.server_error_message | send the error message to the output stream - corresponds to "display_errors" in PHP | |
| hhvm.debug.simple_counter.sample_stack_count | ||
| hhvm.debug.simple_counter.sample_stack_depth | ||
| hhvm.debug.translate_leak_stack_trace | ||
| hhvm.debug.translate_source | translate C++ file and line numbers into original PHP file and line numbers | False |
| hhvm.disable_some_repo_auth_notices | ||
| hhvm.dump_ast | ||
| hhvm.dump_bytecode | Before executing a PHP file, dump out its HHBC along with some interesting metadata, then continue executing the file. Useful only for debugging. | False |
| hhvm.dump_hhas | Instead of executing a PHP file, dump out an hhas file and exit. Useful for debugging, or if you need to directly write some hhas and need an easy way to get started. | False |
| hhvm.dump_ring_buffer_on_crash | ||
| hhvm.dump_tc | dump contents of translation cache when executing program from the command line | False |
| hhvm.dump_tc_anchors | ||
| hhvm.dynamic_extension_path | ||
| hhvm.error_handling.assert_active | ||
| hhvm.error_handling.assert_warning | ||
| hhvm.error_handling.call_user_handler_on_fatals | Call a callback installed via set_error_handler when a fatal error occurs. |
False |
| hhvm.error_handling.enable_hip_hop_errors | ||
| hhvm.error_handling.max_loop_count | ||
| hhvm.error_handling.max_serialized_string_size | ||
| hhvm.error_handling.no_infinite_recursion_detection | ||
| hhvm.error_handling.notice_frequency | ||
| hhvm.error_handling.throw_exception_on_bad_method_call | ||
| hhvm.error_handling.warn_too_many_arguments | ||
| hhvm.error_handling.warning_frequency | ||
| hhvm.gdb_sync_chunks | ||
| hhvm.hack.lang.ints_overflow_to_ints | Don't check if integer arithmetic might overflow, just use asm intrinsics and do whatever the underlying processor would do, most likely a twos-complement wraparound. If unset, then check for integer overflow, and promote up to a float if so. (Skipping the check is considerably faster.) | Value of hhvm.force_hh |
| hhvm.hack.lang.look_for_typechecker | Make sure that Hack code is under a directory with a .hhconfig file, and error otherwise. |
Inverse of value of hhvm.force_hh |
| hhvm.hack_array_warn_frequency | ||
| hhvm.hh_prof_server.allocation_profile | ||
| hhvm.hh_prof_server.enabled | ||
| hhvm.hh_prof_server.filter.min_alloc_per_req | ||
| hhvm.hh_prof_server.filter.min_bytes_per_req | ||
| hhvm.hh_prof_server.port | ||
| hhvm.hh_prof_server.profile_client_mode | ||
| hhvm.hh_prof_server.threads | ||
| hhvm.hh_prof_server.timeout_seconds | ||
| hhvm.hhbc_arena_chunk_size | ||
| hhvm.hhir_alloc_simd_regs | ||
| hhvm.hhir_bytecode_control_flow | ||
| hhvm.hhir_cse | ||
| hhvm.hhir_dead_code_elim | ||
| hhvm.hhir_direct_exit | ||
| hhvm.hhir_enable_callee_saved_opt | ||
| hhvm.hhir_enable_coalescing | ||
| hhvm.hhir_enable_gen_time_inlining | ||
| hhvm.hhir_enable_pre_coloring | ||
| hhvm.hhir_extra_opt_pass | ||
| hhvm.hhir_gen_opts | ||
| hhvm.hhir_generate_asserts | ||
| hhvm.hhir_inline_frame_opts | ||
| hhvm.hhir_inline_singletons | ||
| hhvm.hhir_inlining_max_cost | ||
| hhvm.hhir_inlining_max_depth | ||
| hhvm.hhir_inlining_max_return_dec_refs | ||
| hhvm.hhir_jump_opts | ||
| hhvm.hhir_num_free_regs | ||
| hhvm.hhir_prediction_opts | ||
| hhvm.hhir_refcount_opts | ||
| hhvm.hhir_refcount_opts_always_sink | ||
| hhvm.hhir_relax_guards | ||
| hhvm.hhir_simplification | ||
| hhvm.hhir_stress_codegen_blocks | ||
| hhvm.hhir_validate_ref_count | ||
| hhvm.hot_func_count | ||
| hhvm.http.default_timeout | ||
| hhvm.http.slow_query_threshold | ||
| hhvm.initial_named_entity_table_size | ||
| hhvm.initial_static_string_table_size | ||
| hhvm.keep_perf_pid_map | ||
| hhvm.log.access_log_default_format | ||
| hhvm.log.admin_log.file | ||
| hhvm.log.admin_log.format | ||
| hhvm.log.admin_log.sym_link | ||
| hhvm.log.always_escape_log | ||
| hhvm.log.always_log_unhandled_exceptions | Unhandled exceptions are PHP fatal errors, and AlwaysLogUnhandledExceptions will make sure they get logged even if a user’s error handler is installed for them. | true |
| hhvm.log.drop_cache_chunk_size | ||
| hhvm.log.file | The location of the HHVM error log file | stderr |
| hhvm.log.header | ||
| hhvm.log.header_mangle | ||
| hhvm.log.level | ||
| hhvm.log.max_messages_per_request | ||
| hhvm.log.native_stack_trace | ||
| hhvm.log.no_silencer | ||
| hhvm.log.runtime_error_reporting_level | (numeric) corresponds to "error_reporting" in PHP | 8191 = E_ALL |
| hhvm.log.sym_link | ||
| hhvm.log.use_cronolog | ||
| hhvm.log.use_log_file | ||
| hhvm.log.use_request_log | ||
| hhvm.log.use_syslog | ||
| hhvm.macros | ||
| hhvm.mail.force_extra_parameters | ||
| hhvm.mail.sendmail_path | ||
| hhvm.map_hot_text_huge | ||
| hhvm.map_tc_huge | ||
| hhvm.map_tgt_cache_huge | ||
| hhvm.max_cloned_closures | ||
| hhvm.max_code_lines | ||
| hhvm.max_low_mem_huge_pages | ||
| hhvm.max_user_function_id | ||
| hhvm.mysql.typed_results | ||
| hhvm.mysql.slow_query_threshold | ||
| hhvm.never_save_config | ||
| hhvm.num_single_jit_requests | ||
| hhvm.pagelet_server.queue_limit | ||
| hhvm.pagelet_server.thread_count | This specifies the number of worker threads used to server web traffic in server mode. The number to set here is really quite experimental. If you use async, then this number can be the default. Otherwise, you might want a higher number. | 2x the number of CPU cores |
| hhvm.pagelet_server.thread_drop_cache_timeout_seconds | ||
| hhvm.pagelet_server.thread_drop_stack | ||
| hhvm.pagelet_server.thread_round_robin | ||
| hhvm.pcre_table_size | ||
| hhvm.perf_data_map | ||
| hhvm.perf_pid_map | ||
| hhvm.preg.backtrace_limit | ||
| hhvm.preg.error_log | ||
| hhvm.preg.recursion_limit | ||
| hhvm.print_level | ||
| hhvm.profile_bc | ||
| hhvm.profile_heap_across_requests | ||
| hhvm.profile_hw_enable | ||
| hhvm.profile_hw_events | ||
| hhvm.proxy.origin | ||
| hhvm.proxy.percentage | ||
| hhvm.proxy.proxy_urls | ||
| hhvm.proxy.retry | ||
| hhvm.proxy.serve_urls | ||
| hhvm.random_hot_funcs | ||
| hhvm.record_code_coverage | ||
| hhvm.repo.authoritative | If true, you are specifying that you will be using HHVM's repo-authoritative mode to serve requests. |
False |
| hhvm.repo.central.path | The path to the hhvm.hhbc file created when you compiled a repo-authoritative repo. | "" |
| hhvm.repo.commit | ||
| hhvm.repo.debug_info | ||
| hhvm.repo.journal | ||
| hhvm.repo.local.mode | ||
| hhvm.repo.local.path | ||
| hhvm.repo.mode | ||
| hhvm.repo.preload | ||
| hhvm.resource_limit.drop_cache_cycle | ||
| hhvm.resource_limit.max_memcache_key_count | ||
| hhvm.resource_limit.max_rss | ||
| hhvm.resource_limit.max_rss_polling_cycle | ||
| hhvm.resource_limit.max_sql_row_count | ||
| hhvm.resource_limit.serialization_size_limit | ||
| hhvm.resource_limit.socket_default_timeout | ||
| hhvm.resource_limit.string_offset_limit | ||
| hhvm.runtime_type_profile | ||
| hhvm.runtime_type_profile_logging_freq | ||
| hhvm.sandbox.conf_file | ||
| hhvm.sandbox.directories_root | ||
| hhvm.sandbox.fallback | ||
| hhvm.sandbox.from_common_root | ||
| hhvm.sandbox.home | ||
| hhvm.sandbox.logs_root | ||
| hhvm.sandbox.sandbox_mode | ||
| hhvm.script_mode | ||
| hhvm.server_variables | Set the contents of the $_SERVER variable |
$_SERVER |
| hhvm.server.allow_duplicate_cookies | ||
| hhvm.server.allowed_exec_cmds | Only effective if hhvm.server.whitelist_exec is true. |
|
| hhvm.server.always_populate_raw_post_data | ||
| hhvm.server.always_use_relative_path | ||
| hhvm.server.backlog | ||
| hhvm.server.connection_limit | ||
| hhvm.server.connection_timeout_seconds | ||
| hhvm.server.dangling_wait | ||
| hhvm.server.default_charset_name | ||
| hhvm.server.default_document | The default document that will be served if a page is not explicitly specified. | "index.php" |
| hhvm.server.default_server_name_suffix | ||
| hhvm.server.dns_cache.enable | Whether HHVM should cache DNS lookups. | False |
| hhvm.server.dns_cache.ttl | TTL for DNS cache entries. | 600 |
| hhvm.server.enable_cuf_async | ||
| hhvm.server.enable_early_flush | ||
| hhvm.server.enable_keep_alive | ||
| hhvm.server.enable_magic_quotes_gpc | ||
| hhvm.server.enable_on_demand_uncompress | ||
| hhvm.server.enable_output_buffering | ||
| hhvm.server.enable_ssl | ||
| hhvm.server.enable_static_content_from_disk | ||
| hhvm.server.enable_static_content_m_map | ||
| hhvm.server.error_document404 | The default 404 error document that will be served when a 404 error occurs. | "index.php" |
| hhvm.server.error_document500 | ||
| hhvm.server.evil_shutdown | ||
| hhvm.server.exit_on_bind_fail | ||
| hhvm.server.expires_active | ||
| hhvm.server.expires_default | ||
| hhvm.server.expose_hphp | ||
| hhvm.server.expose_xfb_debug | ||
| hhvm.server.expose_xfb_server | ||
| hhvm.server.fatal_error_message | ||
| hhvm.server.file_cache | ||
| hhvm.server.file_socket | ||
| hhvm.server.fix_path_info | ||
| hhvm.server.forbidden_as404 | ||
| hhvm.server.force_chunked_encoding | ||
| hhvm.server.force_compression.cookie | ||
| hhvm.server.force_compression.param | ||
| hhvm.server.force_compression.url | ||
| hhvm.server.force_server_name_to_header | ||
| hhvm.server.graceful_shutdown_wait | ||
| hhvm.server.gzip_compression_level | ||
| hhvm.server.harsh_shutdown | ||
| hhvm.server.host | ||
| hhvm.server.http_safe_mode | ||
| hhvm.server.image_memory_max_bytes | ||
| hhvm.server.implicit_flush | ||
| hhvm.server.ip | ||
| hhvm.server.kill_on_sigterm | ||
| hhvm.server.lib_event_sync_send | ||
| hhvm.server.light_process_count | ||
| hhvm.server.light_process_file_prefix | ||
| hhvm.server.lock_code_memory | ||
| hhvm.server.max_array_chain | ||
| hhvm.server.max_post_size | ||
| hhvm.server.memory_head_room | ||
| hhvm.server.output_handler | ||
| hhvm.server.path_debug | ||
| hhvm.server.port | The port on which the HHVM server will listen for requests. | 80 |
| hhvm.server.prod_server_port | ||
| hhvm.server.psp_timeout_seconds | ||
| hhvm.server.request_body_read_limit | ||
| hhvm.server.request_init_document | ||
| hhvm.server.request_init_function | ||
| hhvm.server.request_memory_max_bytes | ||
| hhvm.server.request_timeout_seconds | ||
| hhvm.server.response_queue_count | ||
| hhvm.server.safe_file_access | ||
| hhvm.server.shutdown_listen_no_work | ||
| hhvm.server.shutdown_listen_wait | ||
| hhvm.server.ssl_certificate_dir | ||
| hhvm.server.ssl_certificate_file | ||
| hhvm.server.ssl_certificate_key_file | ||
| hhvm.server.ssl_port | ||
| hhvm.server.startup_document | ||
| hhvm.server.stat_cache | ||
| hhvm.server.takeover_filename | ||
| hhvm.server.thread_count | Number of worker threads serving web requests | 2 * number of CPUs |
| hhvm.server.thread_drop_cache_timeout_seconds | ||
| hhvm.server.thread_drop_stack | ||
| hhvm.server.thread_job_lifo_switch_threshold | ||
| hhvm.server.thread_job_max_queuing_milli_seconds | ||
| hhvm.server.thread_round_robin | ||
| hhvm.server.tls_client_cipher_spec | ||
| hhvm.server.tls_disable_tls1_2 | ||
| hhvm.server.type | The type of server you are planning to use to help server up requests for the HHVM server. The default is "Proxygen", but you can also specify "fastcgi"
|
`"Proxygen" |
| hhvm.server.unserialization_whitelist_check | ||
| hhvm.server.unserialization_whitelist_check_warning_only | ||
| hhvm.server.upload.enable_file_uploads | ||
| hhvm.server.upload.enable_upload_progress | ||
| hhvm.server.upload.rfc1867freq | ||
| hhvm.server.upload.rfc1867name | ||
| hhvm.server.upload.rfc1867prefix | ||
| hhvm.server.upload.upload_max_file_size | ||
| hhvm.server.upload.upload_tmp_dir | ||
| hhvm.server.use_direct_copy | ||
| hhvm.server.user | ||
| hhvm.server.utf8ize_replace | ||
| hhvm.server.warmup_document | ||
| hhvm.server.warmup_throttle_request_count | ||
| hhvm.server.warn_on_collection_to_array | ||
| hhvm.server.whitelist_exec | ||
| hhvm.server.whitelist_exec_warning_only | ||
| hhvm.server.xfb_debug_ssl_key | ||
| hhvm.short_print_char_count | ||
| hhvm.simple_xml.empty_namespace_matches_all | ||
| hhvm.simulate_arm | ||
| hhvm.small_step | ||
| hhvm.source_root | For server mode, this will hold the path to the root of the directory of the code being served up. This setting is useless in repo-authoritative mode. | working directory of HHVM process |
| hhvm.spin_on_crash | ||
| hhvm.stack_args | ||
| hhvm.static_file.extensions[ ] | Map of filename extensions to content types for use by the proxygen server | see runtime-option.cpp for defaults |
| hhvm.stats.enable | ||
| hhvm.stats.apc | ||
| hhvm.stats.enable_hot_profiler | ||
| hhvm.stats.max_slot | ||
| hhvm.stats.memcache | ||
| hhvm.stats.memcache_key | ||
| hhvm.stats.memory | ||
| hhvm.stats.network_io | ||
| hhvm.stats.profiler_max_trace_buffer | ||
| hhvm.stats.profiler_trace_buffer | ||
| hhvm.stats.profiler_trace_expansion | ||
| hhvm.stats.slot_duration | ||
| hhvm.stats.sql | ||
| hhvm.stats.sql_table | ||
| hhvm.stats.web | ||
| hhvm.stats.xsl | ||
| hhvm.stats.xsl_proxy | ||
| hhvm.tc_num_huge_cold_mb | ||
| hhvm.tc_num_huge_hot_mb | ||
| hhvm.timeouts_use_wall_time | ||
| hhvm.tutorial | ||
| hhvm.tutorial.visited | ||
| hhvm.utf8 | ||
| hhvm.vm_initial_global_table_size | ||
| hhvm.vm_stack_elms | ||
| hhvm.xbox.default_local_timeout_milli_seconds | ||
| hhvm.xbox.default_remote_timeout_seconds | ||
| hhvm.xbox.process_message_func | ||
| hhvm.xbox.server_info.always_reset | ||
| hhvm.xbox.server_info.log_info | ||
| hhvm.xbox.server_info.max_duration | ||
| hhvm.xbox.server_info.max_queue_length | ||
| hhvm.xbox.server_info.max_request | ||
| hhvm.xbox.server_info.port | ||
| hhvm.xbox.server_info.request_init_document | ||
| hhvm.xbox.server_info.request_init_function | ||
| hhvm.xbox.server_info.thread_count | ||
| hhvm.xbox.server_info.warmup_document | ||
| hhvm.xenon.force_always_on | Gather PHP and async stacks at every function enter/exit. This will gather potentially large amounts of data and is mostly useful for small script debugging. | False |
| hhvm.xenon.period | Configure Xenon to gather PHP and async stacks every this many seconds. | 0.0 |
| hhvm.zend_executable | ||
| pid | PID file path |