| OS | Man Page | Section | Hits |
|---|---|---|---|
| freebsd | preadv | 2 | 458 |
| debian | preadv | 2 | 436 |
| netbsd | preadv | 2 | 405 |
| linux | preadv | 2 | 398 |
| linux | preadv2 | 2 | 321 |
| suse | preadv | 2 | 311 |
| centos | preadv | 2 | 307 |
| mojave | preadv | 2 | 276 |
| posix | preadv | 2 | 253 |
| posix | preadv2 | 2 | 248 |
| plan9 | preadv | 2 | 224 |
| freebsd | preadv2 | 2 | 216 |
| opensolaris | preadv | 2 | 214 |
| minix | preadv2 | 2 | 213 |
| osf1 | preadv2 | 2 | 212 |
| opensolaris | preadv2 | 2 | 208 |
| plan9 | preadv2 | 2 | 205 |
| opendarwin | preadv2 | 2 | 204 |
| php | preadv2 | 2 | 201 |
| minix | preadv | 2 | 199 |
| opendarwin | preadv | 2 | 196 |
| mojave | preadv2 | 2 | 194 |
| x11r4 | preadv | 2 | 192 |
| osf1 | preadv | 2 | 192 |
| xfree86 | preadv2 | 2 | 191 |
| xfree86 | preadv | 2 | 189 |
| sunos | preadv2 | 2 | 189 |
| x11r4 | preadv2 | 2 | 189 |
| hpux | preadv | 2 | 187 |
| sunos | preadv | 2 | 184 |
| hpux | preadv2 | 2 | 178 |
| php | preadv | 2 | 172 |