[h010c]

Tested latest linux HLDS build

Protocol version 48
Exe version 1.1.2.7/Stdio (cstrike)
Exe build: 13:12:29 Aug 29 2013 (6153)

and found a weird issue.
OS:

Distributor ID: Ubuntu
Description:    Ubuntu 14.04.2 LTS
Release:        14.04
Codename:       trusty

When creating multiple entities and assigning different attributes to them - server shows some serious CPU load, even on empty server with no plugins(except this one). Tested both fakemeta and engine versions, tested both metamod and metamod-p versions. Testes stable amxmodx 1.8.2, beta amxmodx 1.8.3-d4537, latest beta amxmodx 1.8.3-d4748. All show serious CPU load on an empty server. Linux version only, windows version doesn't have such issues.


These lines are the reason for strange CPU behaviour(any of them or both)

set_pev(entid,pev_solid,SOLID_NOT)
set_pev(entid,pev_movetype,MOVETYPE_FLY)

Code examples:

#include <amxmodx>
#include <engine>
#include <fakemeta>

public plugin_init() {
    register_plugin("TEST","engine","h010c")
    MakeEnts()
}

MakeEnts() {
    for(new i=0;i<200;i++) {
        new entid=engfunc(EngFunc_CreateNamedEntity,engfunc(EngFunc_AllocString,"info_target"))
        set_pev(entid,pev_classname,"csdmitem")
        engfunc(EngFunc_SetModel,entid,"models/w_elite.mdl")
        entity_set_int(entid,EV_INT_solid,SOLID_NOT)
        entity_set_int(entid,EV_INT_movetype,MOVETYPE_FLY)
        new Float:fVec[3]
        fVec[0]=random_float(-500.0,500.0)
        fVec[1]=random_float(-500.0,500.0)
        fVec[2]=random_float(-500.0,500.0)
        entity_set_origin(entid,fVec)
    }
}

#include <amxmodx>
#include <engine>
#include <fakemeta>

public plugin_init() {
    register_plugin("TEST","fakemeta","h010c")
    MakeEnts()
}

MakeEnts() {
    for(new i=0;i<200;i++) {
        new entid=engfunc(EngFunc_CreateNamedEntity,engfunc(EngFunc_AllocString,"info_target"))
        set_pev(entid,pev_classname,"csdmitem")
        engfunc(EngFunc_SetModel,entid,"models/w_elite.mdl")
        set_pev(entid,pev_solid,SOLID_NOT)
        set_pev(entid,pev_movetype,MOVETYPE_FLY)
        new Float:fVec[3]
        fVec[0]=random_float(-500.0,500.0)
        fVec[1]=random_float(-500.0,500.0)
        fVec[2]=random_float(-500.0,500.0)
        set_pev(entid,pev_origin,fVec)
    }
}

Can anyone confim this and submit it to bugtracker if its confirmed?

[GuskiS]

And what do you expect in creating that much entities in few seconds?

[JusTGo]

Originally Posted by GuskiS And what do you expect in creating that much entities in few seconds?

still doesn't explain why windows don't have this problem if he is testing on same specs for windows & linux.

[HamletEagle]

And how it's amxmodx fault if it happens on latest hlds(so it's a hlds update fault) ?

Tested latest linux HLDS build

.

At least, this is what I understood.

[claudiuhks]

Try this?

PHP Code:

#include <amxmodx>
#include <fakemeta>

static g_nInfoTarget = 0;
static g_uEntities = 0;
static Float:g_fTimeStamp = 0.0;
static g_nFwd = 0;

public plugin_init()
{
    register_plugin("Name", "Version", "Author");
    g_nFwd = register_forward(FM_StartFrame, "OnServerFrame");
}

public plugin_precache()
{
    g_nInfoTarget = engfunc(EngFunc_AllocString, "info_target");
}

public OnServerFrame()
{
    static uEntity, Float:fOrigin[3];

    if (g_fTimeStamp < get_gametime())
    {
        g_fTimeStamp = get_gametime() + 0.125;

        uEntity = engfunc(EngFunc_CreateNamedEntity, g_nInfoTarget);
        if (pev_valid(uEntity))
        {
            set_pev(uEntity, pev_classname, "CSDMItem");
            engfunc(EngFunc_SetModel, uEntity, "models/w_elite.mdl");
            set_pev(uEntity, pev_solid, SOLID_NOT);
            set_pev(uEntity, pev_movetype, MOVETYPE_FLY);

            fOrigin[0] = random_float(-500.0, 500.0);
            fOrigin[1] = random_float(-500.0, 500.0);
            fOrigin[2] = random_float(-500.0, 500.0);

            set_pev(uEntity, pev_origin, fOrigin);

            if (++g_uEntities == 200)
                unregister_forward(FM_StartFrame, g_nFwd);
        }
    }
} 


[h010c]

Originally Posted by GuskiS And what do you expect in creating that much entities in few seconds?

It doesn't lag at creation time, but AFTER entities have been created an empty server doing NOTHING, being idle, keeps eating CPU badly for the rest of its uptime. And windows build keeps CPU load at 0%.

Originally Posted by HamletEagle And how it's amxmodx fault if it happens on latest hlds(so it's a hlds update fault) ?

I don't know wheter it is an amxmodx fault or this linux HLDS build fault, I am looking if someone can confirm that this problem exists at all or it is just me.

claudiuhks, I can't test it right now, but I'll do it as soon as I have some spare time and post results, thank you for your suggestion. At first I was kinda going to try to create entities with a delay myself, but then on a second thought I didn't see how this could help. But I'll try it.

[Arkshine]

It's unlikely AMXX fault since it just executes/sets directly game/engine functions.
But it's really not that surprising, engine does a lot of things when creating and setting things around an entity, if you force it to do it 200 times in one frame, for sure it's going to be noticeable. This is bad example which doesn't reflect a server usage.

[h010c]

I don't think that I was clear enough with my explanations. Here is what happens:

[Arkshine]

I don't think I was clear enough with my explanations, this is unrelated with AMXX itself. Feel free to complain to valve that their 17+ years old engine sucks.

You don't seem to understand that your example is invalid and silly. Game will never do that, nor a plugin. You can easily eat CPU by looping thing. Creating and dealing with an entity is expensive, it's obvious if you create/deal 200 in a row, in one frame, it will eat briefly more CPU since you're asking the engine to run a lot of code at once in a very short of time. I'm not sure to get what are you trying to prove.

If you're saying that your CPU is keeping to 30/40%+ after creating the entities, it's expected that it would eat CPU, after all engine has to check many things (entity properties, collisions, etc), it's likely more stressed especially when you create a bunch at the same place. The more it interacts, the more it will cost CPU. That's why you example is quite a bad one.

Note: Please don't PM people, I can see myself there are answers. It's annoying. Don't do it again.

[HamletEagle]

Originally Posted by Arkshine I don't think I was clear enough with my explanations, this is unrelated with AMXX itself. Feel free to complain to valve that their 17+ years old engine sucks. You don't seem to understand that your example is invalid and silly. Game will never do that, nor a plugin. You can easily eat CPU by looping thing. Creating and dealing with an entity is expensive, it's obvious if you create/deal 200 in a row, in one frame, it will eat briefly more CPU since you're asking the engine to run a lot of code at once in a very short of time. I'm not sure to get what are you trying to prove. If you're saying that your CPU is keeping to 30/40%+ after creating the entities, it's expected that it would eat CPU, after all engine has to check many things (entity properties, collisions, etc), it's likely more stressed especially when you create a bunch at the same place. The more it interacts, the more it will cost CPU. That's why you example is quite a bad one. Note: Please don't PM people, I can see myself there are answers. It's annoying. Don't do it again.

Arkshine, I think that his point is that this only happen on linux, and not in windows. As I said before, this doesn't seem to be amxx fault. Go and ask Valve.