我总是发现npm uninstall要花费很长时间，并且正在尝试进行故障排除。大约 25 分钟前，我开始卸载四个软件包，它似乎停滞不前，没有任何进展，没有明显的 CPU 活动，也没有明显的磁盘活动（使用iotop）。我不知道这个问题可能是什么。
这是日志级别为“傻”的当前输出（匿名）：
$ npm uninstall --save-dev -ddd gulp-autoprefixer gulp-sass gulp-sequence gulp-sourcemaps
npm info it worked if it ends with ok
npm verb cli [ '/path/to/home/bin/node-v0.12.2-linux-x64/bin/node',
npm verb cli '/path/to/home/bin/node-v0.12.2-linux-x64/bin/npm',
npm verb cli 'uninstall',
npm verb cli '--save-dev',
npm verb cli '-ddd',
npm verb cli 'gulp-autoprefixer',
npm verb cli 'gulp-sass',
npm verb cli 'gulp-sequence',
npm verb cli 'gulp-sourcemaps' ]
npm info using npm@2.7.4
npm info using node@v0.12.2
npm verb unbuild node_modules/gulp-autoprefixer
npm verb unbuild node_modules/gulp-sass
npm verb unbuild node_modules/gulp-sequence
npm verb unbuild node_modules/gulp-sourcemaps
npm sill gentlyRm /path/to/home/myproject/node_modules/gulp-autoprefixer is being purged from base /path/to/home/myproject
npm verb gentlyRm don't care about contents; nuking /path/to/home/myproject/node_modules/gulp-autoprefixer
npm sill gentlyRm /path/to/home/myproject/node_modules/gulp-sass is being purged from base /path/to/home/myproject
npm verb gentlyRm don't care about contents; nuking /path/to/home/myproject/node_modules/gulp-sass
npm sill gentlyRm /path/to/home/myproject/node_modules/gulp-sequence is being purged from base /path/to/home/myproject
npm verb gentlyRm don't care about contents; nuking /path/to/home/myproject/node_modules/gulp-sequence
npm sill gentlyRm /path/to/home/myproject/node_modules/gulp-sourcemaps is being purged from base /path/to/home/myproject
npm verb gentlyRm don't care about contents; nuking /path/to/home/myproject/node_modules/gulp-sourcemaps
npm sill vacuum-fs purging /path/to/home/myproject/node_modules/gulp-autoprefixer
npm sill vacuum-fs purging /path/to/home/myproject/node_modules/gulp-sass
npm sill vacuum-fs purging /path/to/home/myproject/node_modules/gulp-sequence
npm sill vacuum-fs purging /path/to/home/myproject/node_modules/gulp-sourcemaps
...自从我启动它后不久，它就一直停在那里。较早的尝试一次删除一个包是可行的，但仍然在vacuum-fsstep 中停滞了一段时间（大约 30 秒）。我在具有 8 GB 内存、Node v0.12.2 和 npm 2.7.4 的四核 Intel i5 上运行 Ubuntu 14.04 LTS。
有谁知道问题可能是什么或如何进一步排除故障？
（顺便说一句，我不确定这是否是解决工具问题的适当 StackExchange 站点，所以如果不是，请另外推荐！）
编辑：我使用strace下面@dekkard 的回答做了一些调查；这是发生减速的区域的摘录（strace -f -t -o out.log npm uninstall -D gobble用作示例）：
...
18327 17:00:52 rmdir("/path/to/home/myproject/node_modules/gobble/node_modules/minimatch" <unfinished ...>
18318 17:00:52 read(8, "\1\0\0\0\0\0\0\0", 1024) = 8
18318 17:00:52 epoll_wait(5, <unfinished ...>
18325 17:00:55 <... rmdir resumed> ) = -1 ENOTEMPTY (Directory not empty)
18325 17:00:55 write(8, "\1\0\0\0\0\0\0\0", 8) = 8
18325 17:00:55 rmdir("/path/to/home/myproject/node_modules/gobble/node_modules/mkdirp" <unfinished ...>
18318 17:00:55 <... epoll_wait resumed> {{EPOLLIN, {u32=8, u64=8}}}, 1024, -1) = 1
18318 17:00:55 read(8, "\1\0\0\0\0\0\0\0", 1024) = 8
18318 17:00:55 epoll_wait(5, <unfinished ...>
18328 17:00:58 <... rmdir resumed> ) = -1 ENOTEMPTY (Directory not empty)
18328 17:00:58 write(8, "\1\0\0\0\0\0\0\0", 8) = 8
18318 17:00:58 <... epoll_wait resumed> {{EPOLLIN, {u32=8, u64=8}}}, 1024, -1) = 1
18328 17:00:58 rmdir("/path/to/home/myproject/node_modules/gobble/node_modules/promise-map-series" <unfinished ...>
18318 17:00:58 read(8, "\1\0\0\0\0\0\0\0", 1024) = 8
18318 17:00:58 epoll_wait(5, <unfinished ...>
18326 17:01:01 <... rmdir resumed> ) = -1 ENOTEMPTY (Directory not empty)
18326 17:01:01 write(8, "\1\0\0\0\0\0\0\0", 8) = 8
18318 17:01:01 <... epoll_wait resumed> {{EPOLLIN, {u32=8, u64=8}}}, 1024, -1) = 1
...
在控制台中实时查看时，每个epoll_wait(5,输出和任何后续输出之间都会出现约 3 秒的停顿。想法？