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78e2efff88
* Emergency Profile Dumps (#75924) ## About The Pull Request Adds some hooks to the MC that detect if something ate a ton of real time last tick, and reacts by dumping our current profile into a file It's really frustrating to see a spike in td in our performance logs, but see no reason in the profile because it's only taken every 5 minutes. This resolves that I'm throwing this up so mso can give it a look over, not sure if I want to use defines or configs here, taking suggestions 🆑 server: Adds a system to emergency dump profiles if too much time passes between ticks config: Added configs that control how often emergency profiles are allowed to dump, alongside the threshold for what counts as too much time between ticks /🆑 * Emergency Profile Dumps --------- Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com> Co-authored-by: GoldenAlpharex <58045821+GoldenAlpharex@users.noreply.github.com> Co-authored-by: lessthanthree <83487515+lessthnthree@users.noreply.github.com> Co-authored-by: Pinta <68373373+softcerv@users.noreply.github.com> Co-authored-by: Bloop <vinylspiders@gmail.com> Co-authored-by: Bloop <13398309+vinylspiders@users.noreply.github.com>
75 lines
2.4 KiB
Plaintext
75 lines
2.4 KiB
Plaintext
#define PROFILER_FILENAME "profiler.json"
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#define SENDMAPS_FILENAME "sendmaps.json"
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SUBSYSTEM_DEF(profiler)
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name = "Profiler"
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init_order = INIT_ORDER_PROFILER
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runlevels = RUNLEVELS_DEFAULT | RUNLEVEL_LOBBY
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wait = 3000
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var/fetch_cost = 0
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var/write_cost = 0
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/datum/controller/subsystem/profiler/stat_entry(msg)
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msg += "F:[round(fetch_cost,1)]ms"
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msg += "|W:[round(write_cost,1)]ms"
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return msg
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/datum/controller/subsystem/profiler/Initialize()
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if(CONFIG_GET(flag/auto_profile))
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StartProfiling()
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else
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StopProfiling() //Stop the early start profiler
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return SS_INIT_SUCCESS
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/datum/controller/subsystem/profiler/OnConfigLoad()
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if(CONFIG_GET(flag/auto_profile))
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StartProfiling()
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can_fire = TRUE
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else
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StopProfiling()
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can_fire = FALSE
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/datum/controller/subsystem/profiler/fire()
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DumpFile()
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/datum/controller/subsystem/profiler/Shutdown()
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if(CONFIG_GET(flag/auto_profile))
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DumpFile(allow_yield = FALSE)
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world.Profile(PROFILE_CLEAR, type = "sendmaps")
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return ..()
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/datum/controller/subsystem/profiler/proc/StartProfiling()
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world.Profile(PROFILE_START)
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world.Profile(PROFILE_START, type = "sendmaps")
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/datum/controller/subsystem/profiler/proc/StopProfiling()
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world.Profile(PROFILE_STOP)
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world.Profile(PROFILE_STOP, type = "sendmaps")
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/datum/controller/subsystem/profiler/proc/DumpFile(allow_yield = TRUE)
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var/timer = TICK_USAGE_REAL
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var/current_profile_data = world.Profile(PROFILE_REFRESH, format = "json")
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var/current_sendmaps_data = world.Profile(PROFILE_REFRESH, type = "sendmaps", format="json")
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fetch_cost = MC_AVERAGE(fetch_cost, TICK_DELTA_TO_MS(TICK_USAGE_REAL - timer))
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if(allow_yield)
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CHECK_TICK
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if(!length(current_profile_data)) //Would be nice to have explicit proc to check this
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stack_trace("Warning, profiling stopped manually before dump.")
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var/prof_file = file("[GLOB.log_directory]/[PROFILER_FILENAME]")
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if(fexists(prof_file))
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fdel(prof_file)
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if(!length(current_sendmaps_data)) //Would be nice to have explicit proc to check this
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stack_trace("Warning, sendmaps profiling stopped manually before dump.")
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var/sendmaps_file = file("[GLOB.log_directory]/[SENDMAPS_FILENAME]")
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if(fexists(sendmaps_file))
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fdel(sendmaps_file)
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timer = TICK_USAGE_REAL
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WRITE_FILE(prof_file, current_profile_data)
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WRITE_FILE(sendmaps_file, current_sendmaps_data)
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write_cost = MC_AVERAGE(write_cost, TICK_DELTA_TO_MS(TICK_USAGE_REAL - timer))
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#undef PROFILER_FILENAME
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#undef SENDMAPS_FILENAME
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