~/f/zola/RPMS.2017 ~/f/zola ~/f/zola RPMS.2017/zola-0.19.1-1.1.x86_64.rpm RPMS/zola-0.19.1-1.1.x86_64.rpm differ: byte 225, line 1 Comparing zola-0.19.1-1.1.x86_64.rpm to zola-0.19.1-1.1.x86_64.rpm comparing the rpm tags of zola --- old-rpm-tags +++ new-rpm-tags @@ -876 +876 @@ -/usr/bin/zola de02ff322f035c2e527705624d0f087c9c8f3976109b357e22ca73d1b1d15297 0 +/usr/bin/zola 66a4cb9593a42c99219aee9c0d98b89b9b557c75572abf5c5282a5e8c9391131 0 comparing rpmtags comparing RELEASE comparing PROVIDES comparing scripts comparing filelist comparing file checksum creating rename script RPM file checksum differs. Extracting packages /usr/bin/zola differs in ELF sections --- old /usr/bin/zola (objdump) +++ new /usr/bin/zola (objdump) @@ -11621,7 +11621,7 @@ 02d8d8 98f93701 00000000 78dc9501 00000000 ..7.....x....... 02d8e8 08000000 00000000 20043801 00000000 ........ .8..... 02d8f8 88dc9501 00000000 08000000 00000000 ................ - 02d908 58725b01 00000000 98dc9501 00000000 Xr[............. + 02d908 88705b01 00000000 98dc9501 00000000 .p[............. 02d918 08000000 00000000 9cf93701 00000000 ..........7..... 02d928 a8dc9501 00000000 08000000 00000000 ................ 02d938 a0f93701 00000000 b8dc9501 00000000 ..7............. @@ -13482,10 +13482,10 @@ 034d28 08000000 00000000 29e64401 00000000 ........).D..... 034d38 082a9601 00000000 08000000 00000000 .*.............. 034d48 72d75a01 00000000 182a9601 00000000 r.Z......*...... - 034d58 08000000 00000000 58725b01 00000000 ........Xr[..... + 034d58 08000000 00000000 88705b01 00000000 .........p[..... 034d68 282a9601 00000000 08000000 00000000 (*.............. 034d78 38dc4401 00000000 382a9601 00000000 8.D.....8*...... - 034d88 08000000 00000000 4b705b01 00000000 ........Kp[..... + 034d88 08000000 00000000 f4775b01 00000000 .........w[..... 034d98 482a9601 00000000 08000000 00000000 H*.............. 034da8 30e64401 00000000 582a9601 00000000 0.D.....X*...... 034db8 08000000 00000000 33e64401 00000000 ........3.D..... @@ -77210,11 +77210,11 @@ 12dc28 9a2c6101 00000000 4808aa01 00000000 .,a.....H....... 12dc38 08000000 00000000 98673801 00000000 .........g8..... 12dc48 5808aa01 00000000 08000000 00000000 X............... - 12dc58 34735b01 00000000 6808aa01 00000000 4s[.....h....... + 12dc58 27705b01 00000000 6808aa01 00000000 'p[.....h....... 12dc68 08000000 00000000 54a35101 00000000 ........T.Q..... 12dc78 7808aa01 00000000 08000000 00000000 x............... 12dc88 b9c05b01 00000000 8808aa01 00000000 ..[............. - 12dc98 08000000 00000000 4b705b01 00000000 ........Kp[..... + 12dc98 08000000 00000000 f4775b01 00000000 .........w[..... 12dca8 9808aa01 00000000 08000000 00000000 ................ 12dcb8 5aa35101 00000000 a808aa01 00000000 Z.Q............. 12dcc8 08000000 00000000 b0fd3701 00000000 ..........7..... @@ -77237,7 +77237,7 @@ 12ddd8 b4fd3701 00000000 6809aa01 00000000 ..7.....h....... 12dde8 08000000 00000000 65a35101 00000000 ........e.Q..... 12ddf8 7809aa01 00000000 08000000 00000000 x............... - 12de08 2d765b01 00000000 8809aa01 00000000 -v[............. + 12de08 64775b01 00000000 8809aa01 00000000 dw[............. 12de18 08000000 00000000 68a35101 00000000 ........h.Q..... 12de28 9809aa01 00000000 08000000 00000000 ................ 12de38 6ba35101 00000000 a809aa01 00000000 k.Q............. @@ -77513,7 +77513,7 @@ 12ef18 fb215c01 00000000 b015aa01 00000000 .!\............. 12ef28 08000000 00000000 18fe3701 00000000 ..........7..... 12ef38 c015aa01 00000000 08000000 00000000 ................ - 12ef48 58725b01 00000000 d015aa01 00000000 Xr[............. + 12ef48 88705b01 00000000 d015aa01 00000000 .p[............. 12ef58 08000000 00000000 623b6101 00000000 ........b;a..... 12ef68 e015aa01 00000000 08000000 00000000 ................ 12ef78 b82c6101 00000000 f015aa01 00000000 .,a............. @@ -79947,7 +79947,7 @@ 138738 08000000 00000000 4c2f6101 00000000 ........L/a..... 138748 787baa01 00000000 08000000 00000000 x{.............. 138758 352d6101 00000000 887baa01 00000000 5-a......{...... - 138768 08000000 00000000 4b705b01 00000000 ........Kp[..... + 138768 08000000 00000000 f4775b01 00000000 .........w[..... 138778 987baa01 00000000 08000000 00000000 .{.............. 138788 04013801 00000000 a87baa01 00000000 ..8......{...... 138798 08000000 00000000 18fe3701 00000000 ..........7..... @@ -92424,7 +92424,7 @@ 169308 08000000 00000000 486f3801 00000000 ........Ho8..... 169318 788eac01 00000000 08000000 00000000 x............... 169328 d7d26901 00000000 808eac01 00000000 ..i............. - 169338 08000000 00000000 ec2e3801 00000000 ..........8..... + 169338 08000000 00000000 d02e3801 00000000 ..........8..... 169348 888eac01 00000000 08000000 00000000 ................ 169358 96c15b01 00000000 908eac01 00000000 ..[............. 169368 08000000 00000000 9c246a01 00000000 .........$j..... @@ -97631,7 +97631,7 @@ 17d878 40c45901 00000000 b079ad01 00000000 @.Y......y...... 17d888 08000000 00000000 4dc45901 00000000 ........M.Y..... 17d898 c079ad01 00000000 08000000 00000000 .y.............. - 17d8a8 f0d53701 00000000 d079ad01 00000000 ..7......y...... + 17d8a8 80d53701 00000000 d079ad01 00000000 ..7......y...... 17d8b8 08000000 00000000 5fc45901 00000000 ........_.Y..... 17d8c8 e079ad01 00000000 08000000 00000000 .y.............. 17d8d8 25525c01 00000000 f079ad01 00000000 %R\......y...... @@ -97655,53 +97655,53 @@ 17d9f8 e66d5b01 00000000 b07aad01 00000000 .m[......z...... 17da08 08000000 00000000 92c45901 00000000 ..........Y..... 17da18 c07aad01 00000000 08000000 00000000 .z.............. - 17da28 bf775b01 00000000 d07aad01 00000000 .w[......z...... + 17da28 a0755b01 00000000 d07aad01 00000000 .u[......z...... 17da38 08000000 00000000 a0c45901 00000000 ..........Y..... 17da48 e07aad01 00000000 08000000 00000000 .z.............. 17da58 9c246a01 00000000 f07aad01 00000000 .$j......z...... 17da68 08000000 00000000 aac45901 00000000 ..........Y..... 17da78 007bad01 00000000 08000000 00000000 .{.............. - 17da88 5d775b01 00000000 107bad01 00000000 ]w[......{...... + 17da88 60735b01 00000000 107bad01 00000000 `s[......{...... 17da98 08000000 00000000 b4c45901 00000000 ..........Y..... 17daa8 207bad01 00000000 08000000 00000000 {.............. 17dab8 c1c45901 00000000 307bad01 00000000 ..Y.....0{...... 17dac8 08000000 00000000 ccc45901 00000000 ..........Y..... 17dad8 407bad01 00000000 08000000 00000000 @{.............. - 17dae8 507e3701 00000000 507bad01 00000000 P~7.....P{...... + 17dae8 407e3701 00000000 507bad01 00000000 @~7.....P{...... 17daf8 08000000 00000000 85c25c01 00000000 ..........\..... 17db08 607bad01 00000000 08000000 00000000 `{.............. 17db18 3cc15b01 00000000 707bad01 00000000 <.[.....p{...... 17db28 08000000 00000000 87525c01 00000000 .........R\..... 17db38 807bad01 00000000 08000000 00000000 .{.............. - 17db48 0c765b01 00000000 907bad01 00000000 .v[......{...... + 17db48 83725b01 00000000 907bad01 00000000 .r[......{...... 17db58 08000000 00000000 9a2c6101 00000000 .........,a..... 17db68 a07bad01 00000000 08000000 00000000 .{.............. 17db78 ddc45901 00000000 b07bad01 00000000 ..Y......{...... 17db88 08000000 00000000 ecc45901 00000000 ..........Y..... 17db98 c07bad01 00000000 08000000 00000000 .{.............. 17dba8 f8c45901 00000000 d07bad01 00000000 ..Y......{...... - 17dbb8 08000000 00000000 3a785b01 00000000 ........:x[..... + 17dbb8 08000000 00000000 22775b01 00000000 ........"w[..... 17dbc8 e07bad01 00000000 08000000 00000000 .{.............. - 17dbd8 b3755b01 00000000 f07bad01 00000000 .u[......{...... + 17dbd8 4d735b01 00000000 f07bad01 00000000 Ms[......{...... 17dbe8 08000000 00000000 fec45901 00000000 ..........Y..... 17dbf8 007cad01 00000000 08000000 00000000 .|.............. 17dc08 05c55901 00000000 107cad01 00000000 ..Y......|...... - 17dc18 08000000 00000000 1c765b01 00000000 .........v[..... + 17dc18 08000000 00000000 ac765b01 00000000 .........v[..... 17dc28 207cad01 00000000 08000000 00000000 |.............. 17dc38 9e525c01 00000000 307cad01 00000000 .R\.....0|...... 17dc48 08000000 00000000 10c55901 00000000 ..........Y..... 17dc58 407cad01 00000000 08000000 00000000 @|.............. - 17dc68 8e725b01 00000000 507cad01 00000000 .r[.....P|...... + 17dc68 81705b01 00000000 507cad01 00000000 .p[.....P|...... 17dc78 08000000 00000000 1bc55901 00000000 ..........Y..... 17dc88 607cad01 00000000 08000000 00000000 `|.............. 17dc98 27c55901 00000000 707cad01 00000000 '.Y.....p|...... - 17dca8 08000000 00000000 0a775b01 00000000 .........w[..... + 17dca8 08000000 00000000 37795b01 00000000 ........7y[..... 17dcb8 807cad01 00000000 08000000 00000000 .|.............. 17dcc8 a7c15b01 00000000 907cad01 00000000 ..[......|...... 17dcd8 08000000 00000000 32c55901 00000000 ........2.Y..... 17dce8 a07cad01 00000000 08000000 00000000 .|.............. 17dcf8 39c55901 00000000 b07cad01 00000000 9.Y......|...... - 17dd08 08000000 00000000 23735b01 00000000 ........#s[..... + 17dd08 08000000 00000000 0b725b01 00000000 .........r[..... 17dd18 c07cad01 00000000 08000000 00000000 .|.............. 17dd28 46c55901 00000000 d07cad01 00000000 F.Y......|...... 17dd38 08000000 00000000 4fc55901 00000000 ........O.Y..... @@ -97719,21 +97719,21 @@ 17ddf8 08000000 00000000 7ac55901 00000000 ........z.Y..... 17de08 607dad01 00000000 08000000 00000000 `}.............. 17de18 e8f06901 00000000 707dad01 00000000 ..i.....p}...... - 17de28 08000000 00000000 c8d53701 00000000 ..........7..... + 17de28 08000000 00000000 60d53701 00000000 ........`.7..... 17de38 807dad01 00000000 08000000 00000000 .}.............. 17de48 85c55901 00000000 907dad01 00000000 ..Y......}...... - 17de58 08000000 00000000 6c715b01 00000000 ........lq[..... + 17de58 08000000 00000000 f8715b01 00000000 .........q[..... 17de68 a07dad01 00000000 08000000 00000000 .}.............. 17de78 8bc55901 00000000 b07dad01 00000000 ..Y......}...... 17de88 08000000 00000000 4bc15b01 00000000 ........K.[..... 17de98 c07dad01 00000000 08000000 00000000 .}.............. - 17dea8 e0785b01 00000000 d07dad01 00000000 .x[......}...... + 17dea8 e2735b01 00000000 d07dad01 00000000 .s[......}...... 17deb8 08000000 00000000 9dec5f01 00000000 .........._..... 17dec8 e07dad01 00000000 08000000 00000000 .}.............. 17ded8 636e5b01 00000000 f07dad01 00000000 cn[......}...... 17dee8 08000000 00000000 96c55901 00000000 ..........Y..... 17def8 007ead01 00000000 08000000 00000000 .~.............. - 17df08 bc745b01 00000000 107ead01 00000000 .t[......~...... + 17df08 9e775b01 00000000 107ead01 00000000 .w[......~...... 17df18 08000000 00000000 a3c55901 00000000 ..........Y..... 17df28 207ead01 00000000 08000000 00000000 ~.............. 17df38 adc55901 00000000 307ead01 00000000 ..Y.....0~...... @@ -97752,21 +97752,21 @@ 17e008 08000000 00000000 d6c55901 00000000 ..........Y..... 17e018 c07ead01 00000000 08000000 00000000 .~.............. 17e028 3a3a5c01 00000000 d07ead01 00000000 ::\......~...... - 17e038 08000000 00000000 58725b01 00000000 ........Xr[..... + 17e038 08000000 00000000 88705b01 00000000 .........p[..... 17e048 e07ead01 00000000 08000000 00000000 .~.............. 17e058 e57f5c01 00000000 f07ead01 00000000 ..\......~...... - 17e068 08000000 00000000 19745b01 00000000 .........t[..... + 17e068 08000000 00000000 c4745b01 00000000 .........t[..... 17e078 007fad01 00000000 08000000 00000000 ................ 17e088 f06e5b01 00000000 107fad01 00000000 .n[............. 17e098 08000000 00000000 3b525c01 00000000 ........;R\..... 17e0a8 207fad01 00000000 08000000 00000000 ............... 17e0b8 e2c55901 00000000 307fad01 00000000 ..Y.....0....... - 17e0c8 08000000 00000000 95745b01 00000000 .........t[..... + 17e0c8 08000000 00000000 27725b01 00000000 ........'r[..... 17e0d8 407fad01 00000000 08000000 00000000 @............... 17e0e8 f9f06901 00000000 507fad01 00000000 ..i.....P....... - 17e0f8 08000000 00000000 00d63701 00000000 ..........7..... + 17e0f8 08000000 00000000 38d53701 00000000 ........8.7..... 17e108 607fad01 00000000 08000000 00000000 `............... - 17e118 2c795b01 00000000 707fad01 00000000 ,y[.....p....... + 17e118 b9745b01 00000000 707fad01 00000000 .t[.....p....... 17e128 08000000 00000000 ecc55901 00000000 ..........Y..... 17e138 807fad01 00000000 08000000 00000000 ................ 17e148 f8c55901 00000000 907fad01 00000000 ..Y............. /usr/bin/zola differs in assembler output --- old /usr/bin/zola (disasm) +++ new /usr/bin/zola (disasm) @@ -62811,518 +62811,6 @@ cs nopw offset(%rax,%rax,1) nopl offset(%rax,%rax,1) -_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E: - push %rbp - push %r15 - push %r14 - push %r13 - push %r12 - push %rbx - sub $something,%rsp - mov offset(%rdi),%rbx - mov %rbx,%rax - inc %rax - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov %rdi,%r14 - mov offset(%rdi),%rbp - lea offset(%rbp),%r12 - mov %r12,%rcx - shr $something,%rcx - mov %r12,%r13 - and $something,%r13 - sub %rcx,%r13 - cmp $something,%rbp - mov %r13,%rcx - cmovb %rbp,%rcx - movabs $something,%rsi - mov %rcx,%rdx - shr %rdx - cmp %rdx,%rax - jbe <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - inc %rcx - cmp %rcx,%rax - cmova %rax,%rcx - cmp $something,%rcx - jae <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - xor %eax,%eax - cmp $something,%rcx - setae %al - lea offset(,%rax,4),%r12 - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov (%r14),%r15 - mov %r12,%rcx - shr $something,%rcx - xor %eax,%eax - test $something,%r12b - setne %al - add %rcx,%rax - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - cmp $something,%rax - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - xor %edx,%edx - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - movabs $something,%rax - or $something,%rax - cmp %rax,%rcx - ja <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - shl $something,%rcx - movabs $something,%rdx - mov %rcx,%rax - mul %rdx - sub %rdx,%rcx - shr %rcx - add %rdx,%rcx - shr $something,%rcx - dec %rcx - bsr %rcx,%rcx - not %ecx - mov $something,%r12 - shr %cl,%r12 - inc %r12 - mov $something,%ecx - mov %r12,%rax - mul %rcx - jo <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov %rax,%rbx - add $something,%rbx - and $something,%rbx - lea offset(%r12),%r13 - mov %rbx,%rbp - add %r13,%rbp - jb <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - cmp %rsi,%rbp - ja <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - test %rbp,%rbp - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - movzbl offset(%rip),%eax # <__rust_no_alloc_shim_is_unstable> - cmp $something,%rbp - ja <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - movq $something,offset(%rsp) - lea offset(%rsp),%rdi - mov $something,%esi - mov %rbp,%rdx - call *offset(%rip) # - test %eax,%eax - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov offset(%rsp),%r15 - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov $something,%r15d - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - movabs $something,%rcx - and %rax,%rcx - xor %esi,%esi - movdqa offset(%rip),%xmm0 # <_fini + ofs> - data16 data16 cs nopw offset(%rax,%rax,1) - pxor %xmm1,%xmm1 - pcmpgtb (%r15,%rsi,1),%xmm1 - por %xmm0,%xmm1 - movdqa %xmm1,(%r15,%rsi,1) - lea offset(%rsi),%rdx - pxor %xmm1,%xmm1 - pcmpgtb offset(%r15,%rsi,1),%xmm1 - por %xmm0,%xmm1 - movdqa %xmm1,offset(%r15,%rsi,1) - mov %rdx,%rsi - add $something,%rcx - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - test $something,%al - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - pxor %xmm0,%xmm0 - pcmpgtb (%r15,%rdx,1),%xmm0 - por offset(%rip),%xmm0 # <_fini + ofs> - movdqa %xmm0,(%r15,%rdx,1) - cmp $something,%r12 - jae <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - lea offset(%r15),%rdi - mov %r15,%rsi - mov %r12,%rdx - call *offset(%rip) # - test %r12,%r12 - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - xor %r13d,%r13d - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - movdqu (%r15),%xmm0 - movdqu %xmm0,(%r15,%r12,1) - movabs $something,%rax - xor %ecx,%ecx - jmp <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - nop - shr $something,%rdi - lea -offset(%rcx),%rdx - and %rbp,%rdx - mov %dil,(%r15,%rcx,1) - mov %dil,offset(%r15,%rdx,1) - lea offset(%rcx),%rdx - cmp %rbp,%rcx - mov %rdx,%rcx - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - cmpb $something,(%r15,%rcx,1) - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - mov %rcx,%rdx - not %rdx - lea (%rdx,%rdx,4),%rdx - lea (%r15,%rdx,8),%rdx - mov %rcx,%rsi - neg %rsi - lea (%rsi,%rsi,4),%rsi - lea (%r15,%rsi,8),%rsi - nopw offset(%rax,%rax,1) - mov -offset(%rsi),%r8 - mov -offset(%rsi),%r9 - mov %r9,%rdi - imul %rax,%rdi - cmp $something,%r9 - jb <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - lea -offset(%r9),%r10 - mov %r10d,%r11d - shr $something,%r11d - inc %r11d - and $something,%r11d - je <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - shl $something,%r11d - xor %r12d,%r12d - data16 data16 cs nopw offset(%rax,%rax,1) - rol $something,%rdi - xor (%r8,%r12,1),%rdi - imul %rax,%rdi - add $something,%r12 - cmp %r12,%r11 - jne <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - add %r12,%r8 - sub %r12,%r9 - cmp $something,%r10 - jb <_ZN9hashbrown3raw21RawTable$LT$T$C$A$GT$14reserve_rehash17h79dae770a92e0c72E + ofs> - data16 data16 data16 data16 data16 cs nopw offset(%rax,%rax,1) - rol $something,%rdi - xor (%r8),%rdi - imul %rax,%rdi - rol $something,%rdi - xor offset(%r8),%rdi - imul %rax,%rdi - rol $something,%rdi - xor offset(%r8),%rdi - imul %rax,%rdi - rol $something,%rdi - xor offset(%r8),%rdi - imul %rax,%rdi overalldiffered=1 (number of pkgs that are not bit-by-bit identical: 0 is good) overall=1