为什么php5-fpm post请求是慢的，而php-cli代码/控制台curl工作非常快？ [英] Why php5-fpm post requests are slow, while same php-cli code/console curl works extremely fast?
本文介绍了为什么php5-fpm post请求是慢的，而php-cli代码/控制台curl工作非常快？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用虚拟方法对本地api网络服务（通过LAN）执行POST请求，本身工作速度非常快（少于一秒）。
问题是如果我使用php5-fpm它需要很长时间来执行POST请求（ curl post ，流）。
如果我使用php-cli脚本与相同的代码或控制台curl命令 - 它的工作速度非常快，像一个魅力。
em>奇怪的事情：如果我使用 system 从php5-fpm执行控制台curl命令，它花了很多时间来执行请求。所以，没有办法欺骗：（
我使用直接ipv4地址消除DNS问题（我试图定义 CURLOPT_IPRESOLVE CURLOPT_POSTFIELDS 选项，请求的速度非常快
我使用的是debian jessie官方的php 5.6.9包。
所以，为什么这个问题发生在php5-fpm？
我的curl php代码：
$ data = json_encode（[
'id'=> 1，
'method'=>'test'，
'sid' => session_id（），
]）;
$ curl = curl_init（）;
curl_setopt（$ curl，CURLOPT_URL，'http://192.168.182.22'） ;
curl_setopt（$ curl，CURLOPT_HTTPHEADER，[
'）Content-type：$ curl_setopt（$ curl，CURLOPT_RETURNTRANSFER，true）;
curl_setopt（$ curl，CURLOPT_POST， application / json'，
'Content-length：'。strlen（$ data）
]）;
curl_setopt（$ curl，CURLOPT_POSTFIELDS，$ data）;
$ out = curl_exec（$ curl）;
curl_close（$ curl）;
Curl获取信息输出（显示 starttransfer_time 很慢）：
array（26）{
[url] =>
string（22）http://192.168.182.22/
[content_type] =>
string（24）text / html; charset = UTF-8
[http_code] =>
int（200）
[header_size] =>
int（532）
[request_size] =>
int（188）
[filetime] =>
int（-1）
[ssl_verify_result] =>
int（0）
[redirect_count] =>
int（0）
[total_time] =>
float（10.285093）
[namelookup_time] =>
float（3.2E-5）
[connect_time] =>
float（0.000156）
[pretransfer_time] =>
float（0.000181）
[size_upload] =>
float（82）
[size_download] =>
float（99）
[speed_download] =>
float（9）
[speed_upload] =>
float（7）
[download_content_length] =>
float（-1）
[upload_content_length] =>
float（82）
[starttransfer_time] =>
float（10.285052）
[redirect_time] =>
float（0）
[redirect_url] =>
string（0）
[primary_ip] =>
string（14）192.168.182.22
[certinfo] =>
array（0）{
}
[primary_port] =>
int（80）
[local_ip] =>
string（14）192.168.182.20
[local_port] =>
int（49286）
}
它也工作缓慢（有点快，然后curl，但无论如何，我可以得到40-50秒的延迟）：
$ url = 'http://192.168.182.22/';
$ data = json_encode（[
'id'=> 1，
'method'=>'test'，
'sid'=> session_id
]）;
$ headers = [
'Content-type：application / json'，
'Connection：close'，
'Content-Length：'。 strlen（$ data）
];
$ options = array（
'http'=> array（
'header'=> join（\r\\\
，$ headers）。 \r\\\
，
'method'=>'POST'，
'content'=> $ data，
），
）;
$ context = stream_context_create（$ options）;
$ result = file_get_contents（$ url，false，$ context）;
diff / etc / php5 / fpm / php .ini /etc/php5/cli/php.ini ：
303c303
< ; disable_functions选项= pcntl_alarm，pcntl_fork，pcntl_waitpid，pcntl_wait，pcntl_wifexited，pcntl_wifstopped，pcntl_wifsignaled，pcntl_wexitstatus，pcntl_wtermsig，pcntl_wstopsig，pcntl_signal，pcntl_signal_dispatch，pcntl_get_last_error，pcntl_strerror，pcntl_sigprocmask，pcntl_sigwaitinfo，pcntl_sigtimedwait，pcntl_exec，pcntl_getpriority，pcntl_setpriority，
$ --- b $ b> disable_functions =
363c363
< expose_php = Off
---
> expose_php = On
393c393
< memory_limit = 256M
---
> memory_limit = -1
660c660
< post_max_size = 200M
---
> post_max_size = 8M
810c810
< upload_max_filesize = 200M
---
> upload_max_filesize = 2M
tcpdump中的主要内容可以看到不同 - php5-fpm请求包括ARP请求。我不能看到这样在控制台curl / php-cli。当远程api服务器想要返回响应，但是找不到如何执行这个操作的方法时，可能会出现问题。
（@ Mircea建议添加静态arp路由，添加它们，ARP请求从tcpdump消失，但暂停仍然存在）。
php5-fpm的tcpdump输出：
00：55：22.347822 IP 192.168.182.20.52659> 192.168.182.22.80：Flags [S]，seq 4210728690，win 29200，options [mss 1460，sackOK，TS val 301284147 ecr 0，nop，wscale 7]，length 0
E ..& 。@ ..〜........... P .......... r ............
..; 3 .. ......
00：55：22.347898 IP 192.168.182.22.80> 192.168.182.20.52659：标志[S.]，seq 2702388053，ack 4210728691，win 28960，options [mss 1460，sackOK，TS val 280740546 ecr 301284147，nop，wscale 7]，length 0
E .. ; .. @。@。M @ ......... P .... + U ... q .R .........
... ...; 3 ....
00：55：22.347906 IP 192.168.182.20.52659> 192.168.182.22.80：Flags [。]，ack 1，win 229，options [nop，nop，TS val 301284147 ecr 280740546]，length 0
E..4 .. @。@ ..... ......... P ... + V ...........
..; 3 ....
00：55：22.347942 IP 192.168.182.20.52659> 192.168.182.22.80：Flags [P.]，seq 1：206，ack 1，win 229，options [nop，nop，TS val 301284147 ecr 280740546]，length 205
E ..... @ @ .............. P ...... + V ..... o .....
..; 3 .... POST / HTTP /1.1
Host：192.168.182.22
Content-Type：application / x-www-form-urlencoded
Content-Length：82
Accept：* / *
{id：1，method：station.sync，params：[1]，sid：1gn8f4mhctui9ki91bla6osnf4}
00：55：22.347997 IP 192.168.182.22.80> 192.168.182.20.52659：标志[。]，ack 206，win 235，options [nop，nop，TS val 280740547 ecr 301284147]，length 0
E..4 .. @。@。c。 ....... P .... + V ........ 2 ......
......; 3
00：55：27.356575 ARP，Request who-has 192.168.182.22 tell 192.168.182.20，length 28
..........）。4 ...............
00：55：27.356777 ARP，回复192.168.182.22是在00：0c：29：46：99：bc，长度46
..........）F .... ....）4 .......................
00：55：36.742347 IP 192.168.182.22.80> 192.168.182.20.52659：Flags [P.]，seq 1：558，ack 206，win 235，options [nop，nop，TS val 280744145 ecr 301284147]，length 557
E..a .. @ @ .a .......... P .... + V ........ a ......
......; 3HTTP / 1.1 200 OK
服务器：nginx / 1.6.2
日期：Wed，01 Jul 2015 21:55:36 GMT
Content-Type：application / json
Transfer-Encoding：chunked
连接：keep-alive
过期时间：Thu，19 Nov 1981 08:52:00 GMT
高速缓存控制：no-store，no-cache，必须重新验证，post-check = 0 ，pre-check = 0
Pragma：no-cache
Access-Control-Allow-Credentials：true
Access-Control-Allow-Headers：Content-Type，X-Requested- With
访问控制允许方法：GET，POST，OPTIONS
p3p：CP = IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS我们的IND CNT
16
{id：1，result：true}
0
00：55：36.742374 IP 192.168.182.20.52659& 192.168.182.22.80：Flags [。]，ack 558，win 237，options [nop，nop，TS val 301287746 ecr 280744145]，length 0
E..4 .. @。@ ..... ......... P ......-............
..IB ....
00：55：36.742486 IP 192.168.182.20.52659> 192.168.182.22.80：Flags [F.]，seq 206，ack 558，win 237，options [nop，nop，TS val 301287746 ecr 280744145]，length 0
E..4 .. @。@。 ............. P ......- ............
..IB ....
00： 55：36.742559 IP 192.168.182.22.80> 192.168.182.20.52659：flags [F.]，seq 558，ack 207，win 235，options [nop，nop，TS val 280744145 ecr 301287746]，length 0
E..4 .. @。@。 c .......... P ....- ..........：.....
...... IB
00： 55：36.742566 IP 192.168.182.20.52659> 192.168.182.22.80：Flags [。]，ack 559，win 237，options [nop，nop，TS val 301287746 ecr 280744145]，length 0
E..4 .. @。@ ..... ......... P ......-............
..IB ....
00：55：41.744102 ARP ，请求who-has 192.168.182.20 tell 192.168.182.22，长度46
..........）F ................... ...............
00：55：41.744121 ARP，回复192.168.182.20是在00：0c：29：04：34：c9，长度28
..........）。4 .......）F ......
tcpdump输出用于快速（console / php-cli）请求：
0：43：46.854062 IP 192.168.182.20.52527> 192.168.182.22.80：Flags [S]，seq 560731240，win 29200，options [mss 1460，sackOK，TS val 301110274 ecr 0，nop，wscale 7]，length 0
E .. < 。@ ............ /。P！lh ..... r ............
......... ...
00：43：46.854198 IP 192.168.182.22.80> 192.168.182.20.52527：Flags [S]，seq 1849811122，ack 560731241，win 28960，options [mss 1460，sackOK，TS val 280566673 ecr 301110274，nop，wscale 7]，length 0
E .. ; .. @。@。M @ ......... P./nA..!li.q ...........
....... .....
00：43：46.854216 IP 192.168.182.20.52527> 192.168.182.22.80：Flags [。]，ack 1，win 229，options [nop，nop，TS val 301110274 ecr 280566673]，length 0
E..4.k @。@ ..... ....... /。P！l.inA .............
........
00：43：46.854265 IP 192.168 .182.20.52527> 192.168.182.22.80：标志[P.]，seq 1：233，ack 1，win 229，选项[nop，nop，TS val 301110274 ecr 280566673]，长度232
E .... @ ............ /。P！l.inA .............
........ POST / HTTP / 1.1
User-Agent：curl / 7.38.0
主机：192.168.182.22
接受：* / *
Content-Length：84
Content-Type：application / x-www-form-urlencoded
{id：1，sid：1gn8f4mhctui9ki91bla6osnf4，method：station.sync，params：[10] $ b 00：43：46.854317 IP 192.168.182.22.80> 192.168.182.20.52527：标志[。]，ack 233，win 235，options [nop，nop，TS val 280566673 ecr 301110274]，length 0
E..4@。@。R％.. ....... P./nA ..！lQ ... b ......
........
00：43：46.891248 IP 192.168.182.22 .80> 192.168.182.20.52527：标志[P.]，seq 1：615，ack 233，win 235，options [nop，nop，TS val 280566682 ecr 301110274]，长度614
E 。＃@。@。O .......... P./nA ..！IQ ..........
........ HTTP / 1.1 200 OK
服务器：nginx / 1.6.2
日期：Wed，01 Jul 2015 21:43:46 GMT
Content-Type：application / json
Transfer-Encoding：chunked
连接：keep-alive
到期日：Thu，19 Nov 1981 08:52:00 GMT
高速缓存控制：无存储，无高速缓存，必须重新生效，后检查= 0，pre-check = 0
Pragma：no-cache
访问控制允许证书：真
访问控制允许头：内容类型，X请求
访问控制允许方法：GET，POST，OPTIONS
p3p：CP = IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS我们的IND CNT
4f
{id：1，error：{code：SERVER_ERROR，message：站＃10未运行}}
0
00：43：46.891273 IP 192.168.182.20.52527> 192.168.182.22.80：Flags [。]，ack 615，win 238，options [nop，nop，TS val 301110283 ecr 280566682]，length 0
E..4.m @。@ ..... ....... /。P！l.QnA .............
........
00：43：46.891932 IP 192.168 .182.20.52527> 192.168.182.22.80：Flags [F.]，seq 233，ack 615，win 238，options [nop，nop，TS val 301110283 ecr 280566682]，length 0
E..4.n @。@ ........... /。P！l.QnA .............
........
00:43 ：46.896944 IP 192.168.182.22.80> 192.168.182.20.52527：Flags [F.]，seq 615，ack 234，win 235，options [nop，nop，TS val 280566684 ecr 301110283]，length 0
E..4。$ @。@。 R＃......... P./nA ..！lR ...`i .....
........
00：43：46.896954 IP 192.168.182.20.52527> 192.168.182.22.80：Flags [。]，ack 616，win 238，options [nop，nop，TS val 301110285 ecr 280566684]，length 0
E..4.o @。@ ..... ....... /。P！l.RnA .............
........
解决方案我只是追踪了一个类似的问题。我认为这可能是同一个原因。我遇到类似avasin的问题。我发现php-fpm curl到localhost是慢的，但是php-cli curl到localhost是非常快。此外，调试curl时序在php-fpm中显示高的
starttransfer_time，但在php过程中显得很低。
根本原因昨天，问题是php-fpm www.conf 配置。 Becuase php-fpm具有低
start_server，php-fpm实际上必须用有限数量的php-fpm进程处理curl。解决方案是增加start_server的数量，这将影响您的php-fpm可以处理的并发数。 当并发性超过当前php-fpm进程的数量时，性能将大幅下降。因此，使一切都感觉很慢。 php-cli没有相同的问题，因为它可以启动许多php进程，只要你有足够的内存，所以它总是快。我在这里做了很多实验 php curl localhost在做并发请求。看看你是否有兴趣。I am performing POST request to local api web service (via LAN) with dummy method, that works very fast itself (less then a second).
Problem is that if i use php5-fpm it takes extremely long time to perform POST request (curl post, streams).
If i use php-cli script with same code or console curl command - it works very fast, like a charm.
Strange thing: if i use
systemto execute console curl command from php5-fpm it tooks a lot of time to perform the request. So, no way to cheat :(I am using direct ipv4 address to eliminate DNS problems (i tried to define
CURLOPT_IPRESOLVEoption, but perfomance was same).If i omit curl
CURLOPT_POSTFIELDSoption, request is very fast in php5-fpm too.I am using debian jessie with official php 5.6.9 package.
So, why this problem is happening with php5-fpm?
My curl php code:
$data = json_encode([ 'id' => 1, 'method' => 'test', 'sid' => session_id(), ]); $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, 'http://192.168.182.22'); curl_setopt($curl, CURLOPT_RETURNTRANSFER, true); curl_setopt($curl, CURLOPT_POST, true); curl_setopt($curl, CURLOPT_HTTPHEADER, [ 'Content-type: application/json', 'Content-length: ' . strlen($data) ]); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); $out = curl_exec($curl); curl_close($curl);Curl get info output (shows that
starttransfer_timeis very slow):array(26) { ["url"]=> string(22) "http://192.168.182.22/" ["content_type"]=> string(24) "text/html; charset=UTF-8" ["http_code"]=> int(200) ["header_size"]=> int(532) ["request_size"]=> int(188) ["filetime"]=> int(-1) ["ssl_verify_result"]=> int(0) ["redirect_count"]=> int(0) ["total_time"]=> float(10.285093) ["namelookup_time"]=> float(3.2E-5) ["connect_time"]=> float(0.000156) ["pretransfer_time"]=> float(0.000181) ["size_upload"]=> float(82) ["size_download"]=> float(99) ["speed_download"]=> float(9) ["speed_upload"]=> float(7) ["download_content_length"]=> float(-1) ["upload_content_length"]=> float(82) ["starttransfer_time"]=> float(10.285052) ["redirect_time"]=> float(0) ["redirect_url"]=> string(0) "" ["primary_ip"]=> string(14) "192.168.182.22" ["certinfo"]=> array(0) { } ["primary_port"]=> int(80) ["local_ip"]=> string(14) "192.168.182.20" ["local_port"]=> int(49286) }Another try with streams. It also works slow (a bit faster then curl, but anyway i can get 40-50 seconds delay):
$url = 'http://192.168.182.22/'; $data = json_encode([ 'id' => 1, 'method' => 'test', 'sid' => session_id(), ]); $headers = [ 'Content-type: application/json', 'Connection: close', 'Content-Length: ' . strlen($data) ]; $options = array( 'http' => array( 'header' => join("\r\n", $headers) . "\r\n", 'method' => 'POST', 'content' => $data, ), ); $context = stream_context_create($options); $result = file_get_contents($url, false, $context);There is no significant difference in
diff /etc/php5/fpm/php.ini /etc/php5/cli/php.ini:303c303 < disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority, --- > disable_functions = 363c363 < expose_php = Off --- > expose_php = On 393c393 < memory_limit = 256M --- > memory_limit = -1 660c660 < post_max_size = 200M --- > post_max_size = 8M 810c810 < upload_max_filesize = 200M --- > upload_max_filesize = 2MMain thing in tcpdump i can see differ - php5-fpm requests includes ARP requests. I can't see such in console curl/php-cli. Perhaps problem happens when remote api server wants to return response, but can't find a way how to perform this?
(@Mircea adviced to add static arp routes, we added them, ARP requests disappeared from tcpdump, but pauses are still present).
tcpdump output for php5-fpm:
00:55:22.347822 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [S], seq 4210728690, win 29200, options [mss 1460,sackOK,TS val 301284147 ecr 0,nop,wscale 7], length 0 E..<..@.@..~...........P..........r............ ..;3........ 00:55:22.347898 IP 192.168.182.22.80 > 192.168.182.20.52659: Flags [S.], seq 2702388053, ack 4210728691, win 28960, options [mss 1460,sackOK,TS val 280740546 ecr 301284147,nop,wscale 7], length 0 E..<..@.@.M@.........P....+U......q .R......... ......;3.... 00:55:22.347906 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 301284147 ecr 280740546], length 0 E..4..@.@..............P......+V........... ..;3.... 00:55:22.347942 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [P.], seq 1:206, ack 1, win 229, options [nop,nop,TS val 301284147 ecr 280740546], length 205 E.....@.@..............P......+V.....o..... ..;3....POST / HTTP/1.1 Host: 192.168.182.22 Content-Type: application/x-www-form-urlencoded Content-Length: 82 Accept: */* {"id":1,"method":"station.sync","params":[1],"sid":"1gn8f4mhctui9ki91bla6osnf4"} 00:55:22.347997 IP 192.168.182.22.80 > 192.168.182.20.52659: Flags [.], ack 206, win 235, options [nop,nop,TS val 280740547 ecr 301284147], length 0 E..4..@.@.c..........P....+V........2...... ......;3 00:55:27.356575 ARP, Request who-has 192.168.182.22 tell 192.168.182.20, length 28 ..........).4............... 00:55:27.356777 ARP, Reply 192.168.182.22 is-at 00:0c:29:46:99:bc, length 46 ..........)F........).4....................... 00:55:36.742347 IP 192.168.182.22.80 > 192.168.182.20.52659: Flags [P.], seq 1:558, ack 206, win 235, options [nop,nop,TS val 280744145 ecr 301284147], length 557 E..a..@.@.a..........P....+V........a...... ......;3HTTP/1.1 200 OK Server: nginx/1.6.2 Date: Wed, 01 Jul 2015 21:55:36 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Access-Control-Allow-Credentials: true Access-Control-Allow-Headers: Content-Type, X-Requested-With Access-Control-Allow-Methods: GET, POST, OPTIONS p3p: CP=IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT 16 {"id":1,"result":true} 0 00:55:36.742374 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [.], ack 558, win 237, options [nop,nop,TS val 301287746 ecr 280744145], length 0 E..4..@.@..............P......-............ ..IB.... 00:55:36.742486 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [F.], seq 206, ack 558, win 237, options [nop,nop,TS val 301287746 ecr 280744145], length 0 E..4..@.@..............P......-............ ..IB.... 00:55:36.742559 IP 192.168.182.22.80 > 192.168.182.20.52659: Flags [F.], seq 558, ack 207, win 235, options [nop,nop,TS val 280744145 ecr 301287746], length 0 E..4..@.@.c..........P....-..........:..... ......IB 00:55:36.742566 IP 192.168.182.20.52659 > 192.168.182.22.80: Flags [.], ack 559, win 237, options [nop,nop,TS val 301287746 ecr 280744145], length 0 E..4..@.@..............P......-............ ..IB.... 00:55:41.744102 ARP, Request who-has 192.168.182.20 tell 192.168.182.22, length 46 ..........)F.................................. 00:55:41.744121 ARP, Reply 192.168.182.20 is-at 00:0c:29:04:34:c9, length 28 ..........).4.......)F......tcpdump output for fast (console/php-cli) requests:
0:43:46.854062 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [S], seq 560731240, win 29200, options [mss 1460,sackOK,TS val 301110274 ecr 0,nop,wscale 7], length 0 E..<.j@.@............/.P!l.h......r............ ............ 00:43:46.854198 IP 192.168.182.22.80 > 192.168.182.20.52527: Flags [S.], seq 1849811122, ack 560731241, win 28960, options [mss 1460,sackOK,TS val 280566673 ecr 301110274,nop,wscale 7], length 0 E..<..@.@.M@.........P./nA..!l.i..q ........... ............ 00:43:46.854216 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [.], ack 1, win 229, options [nop,nop,TS val 301110274 ecr 280566673], length 0 E..4.k@.@............/.P!l.inA............. ........ 00:43:46.854265 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [P.], seq 1:233, ack 1, win 229, options [nop,nop,TS val 301110274 ecr 280566673], length 232 E....l@.@............/.P!l.inA............. ........POST / HTTP/1.1 User-Agent: curl/7.38.0 Host: 192.168.182.22 Accept: */* Content-Length: 84 Content-Type: application/x-www-form-urlencoded {"id":1, "sid": "1gn8f4mhctui9ki91bla6osnf4","method":"station.sync", "params":[10]} 00:43:46.854317 IP 192.168.182.22.80 > 192.168.182.20.52527: Flags [.], ack 233, win 235, options [nop,nop,TS val 280566673 ecr 301110274], length 0 E..4."@.@.R%.........P./nA..!l.Q....b...... ........ 00:43:46.891248 IP 192.168.182.22.80 > 192.168.182.20.52527: Flags [P.], seq 1:615, ack 233, win 235, options [nop,nop,TS val 280566682 ecr 301110274], length 614 E....#@.@.O..........P./nA..!l.Q........... ........HTTP/1.1 200 OK Server: nginx/1.6.2 Date: Wed, 01 Jul 2015 21:43:46 GMT Content-Type: application/json Transfer-Encoding: chunked Connection: keep-alive Expires: Thu, 19 Nov 1981 08:52:00 GMT Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0 Pragma: no-cache Access-Control-Allow-Credentials: true Access-Control-Allow-Headers: Content-Type, X-Requested-With Access-Control-Allow-Methods: GET, POST, OPTIONS p3p: CP=IDC DSP COR ADM DEVi TAIi PSA PSD IVAi IVDi CONi HIS OUR IND CNT 4f {"id":1,"error":{"code":"SERVER_ERROR","message":"Station #10 is not running"}} 0 00:43:46.891273 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [.], ack 615, win 238, options [nop,nop,TS val 301110283 ecr 280566682], length 0 E..4.m@.@............/.P!l.QnA............. ........ 00:43:46.891932 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [F.], seq 233, ack 615, win 238, options [nop,nop,TS val 301110283 ecr 280566682], length 0 E..4.n@.@............/.P!l.QnA............. ........ 00:43:46.896944 IP 192.168.182.22.80 > 192.168.182.20.52527: Flags [F.], seq 615, ack 234, win 235, options [nop,nop,TS val 280566684 ecr 301110283], length 0 E..4.$@.@.R#.........P./nA..!l.R....`i..... ........ 00:43:46.896954 IP 192.168.182.20.52527 > 192.168.182.22.80: Flags [.], ack 616, win 238, options [nop,nop,TS val 301110285 ecr 280566684], length 0 E..4.o@.@............/.P!l.RnA............. ........
解决方案I just track down a similar issue of my own. I think it might be the same reason. I encounter the similar issue like avasin. I found that php-fpm curl to localhost is slow, but php-cli curl to localhost is extremely fast. Plus, debugging curl timing shows high
starttransfer_timein php-fpm but rather low in php process.I found the root cause yesterday, the issue is the php-fpm www.conf config. Becuase php-fpm has low
start_server, php-fpm actually has to process curl with limited number of php-fpm processes. The solution is to increase the number ofstart_server, this will affect the number of concurrency which your php-fpm could handle. The performance will decrease drastically when the concurrency exceeds the number of current php-fpm processes. Hence, making everything feels slow. The php-cli does not have the same issue since it could launch many php processes as long as you have enough memory, so it is always fast. I did a lot of experiments here php curl localhost is slow when making concurrent requests. Take a look if you're interested.这篇关于为什么php5-fpm post请求是慢的，而php-cli代码/控制台curl工作非常快？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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