【运维发布】进程内存泄漏渐进排查：从增长曲线到代码定位

local MOD_MEM = {}
local function trackModule(mod, cnt)
    MOD_MEM[mod] = (MOD_MEM[mod] or 0) + cnt
end
local function dumpDelta()
    local lines = {}
    for mod, cnt in pairs(MOD_MEM) do
        if cnt > 0 then
            lines[#lines + 1] = mod .. "+" .. cnt
        end
    end
    setsysvar("MEM_DELTA", table.concat(lines, ";"))
end

local function bisectSuspect(group)
    for _, mod in ipairs(group) do
        setsysvar("MOD_OFF_" .. mod, 1)
    end
    collectgarbage("collect")
    setsysvar("MEM_BISECT_STAGE", tostring(group and #group or 0))
end