第326章 稀释法(1 / 2)

王霁发现了一个超级解法

可以找出任何代码缺陷

他不需要看懂代码,甚至不需要看代码,就能找到代码问题

无论是他熟悉的云平台代码,还是内核代码,甚至其他领域代码,只要是想纠毛病,都可以用这个方法——

增加代码行数

就是将文件代码人为放大5倍

假设一个文件有500行,之前的方法是硬啃400行,掌握度达到80%

新方法是,将文件变成2500行,让自己懂新增的2000行

掌握度同样达到80%

怎么样才能懂2000行?

很简单

把自己写过的最简单代码复制过去,这些代码掌握度是100%的

一次性复制10万行,贴到所有文件结尾处,就大大稀释了原文件内容

混合起来,掌握度轻松突破80%!

这就是稀释法

俗称灌水

有了这个方法,只为纠错的话,王霁不再需要理解代码逻辑

他只用5分钟时间,就在编辑器里把linux网络模块灌了一遍水

所有文件掌握度都突破80%!

一个个红点在眼前出现

一条条精确提示划过脑海:

“nf_conntrack连接跟踪表未及时释放失效会话,高并发时会导致系统内存耗尽……”

“igb驱动在dma映射失败时未正确处理队列复位,会引发内核软死锁……”

“tcp_cubic在bdp突变时窗口增长函数计算溢出,触发tcp性能断崖式下降……”

“bridge模块生成树协议状态机在拓扑变更时未加锁,导致网络环路检测失效……”

“ip_vs虚拟服务端口映射未限制哈希表大小,高负载下触发oomkiller……”

“tls卸载引擎在中断上下文未完成回调通知,引发ssl连接挂起……”

总共47个bug!

其中23个可能会被网络攻击

有了提示,就能针对性解决

改动比纠错慢得多,因为需要凑出正确代码,在不懂业务逻辑的情况下,得结合ai边改边试,需要大量时间

好在,他有一支懂业务逻辑的盟军队伍,腾云联军跟十三局

他把23个缺陷都描述出来,分别交给两支友军解决

懂业务的人,一听就明白

对他的眼光五体投地

没二话,都配合他修改

改完后交给他review,存在的问题再用稀释法查看,立刻给予反馈

就这样,3个小时后,这23个问题全部解决,编译测试通过

其中14个问题,是解决黑客公布的内核漏洞

9个问题,是新发现的

连地狱俱乐部也没发现!

这3小时里,几路友军又增添7个新修复,结合王霁这边的14个已知问题,一次性给工信部审核组提交21个!

审核组的编译、验证速度很快,21个提交全部通过!

腾云一次性积21分!

此时积分榜状态是——

第1名:腾云科技21分,

第2名:深核科技18分,

第3名:夏云9分,

第4名:西山云7分,

第5名:昆仑云7分,

……

腾云一举反超深核科技,跃居榜首!

这两家小公司分别位居前两位,将3个大厂甩开了一大截

专项群里的cto们沉默了

王霁对几个cue他的人挨个回复

卢展:“@腾云科技王霁,贵公司要加油啊,我看好你们!”

王霁:“@灵析云卢展,我也看好贵公司,加油!”

苏振:“@腾云科技王霁,王总争口气,别只会抢友商单子,来点技术证明自己!”

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